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1/4" Line-Out from a Hammond AO-28 Preamp: Better Method?

By thebinge March 11, 2009 in Keys, Synths & Samplers

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Posted this in another organ forum and didn't get any response; figure I'll see what the experts on this board have to say:

I currently have a Trek II line-out box hooked up to my A-100. I have one positive wire hooked up to the black "G" terminal and the ground wire hooked up to the brown ground terminal on the AO-28 preamp. The sound is decent, but there is a bit of noise/hum in the signal. I talked to my local organ technician today, and he said it would be better to hook up an external speaker using a balanced output which would incorporate both "G" terminals of the preamp. If that's true, why doesn't Trek II and other companies (Speakeasy comes to mind) offer a line-out box with a balanced output? Wouldn't this just involve using a stereo output jack and running 2 positive leads to both "G" terminals and the ground as normal? Then, wouldn't you use a balanced TRS cable to connect to whatever speaker/amp you were running to? In my A-100 service manual it shows how to hook up a pair of headphones for silent practice and the diagram utilizes both "G" terminals. Am I on track with this or am I missing something? Could I modify my Trek II box to accommodate this hookup? I don't really want to use a Leslie kit as I like running effects/EQ between the organ and speaker

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suitandtieguy

i've always just had an XLR output on my organs. G and G are hot and cold, and ground is ground.

your hum is not coming from the line box, it's probably a loose ground somewhere.

Thanks for the diagram but that's exactly how my Trek II is currently hooked up. I'm looking for something that utilizes both G terminals for a balance output.

S&T, do you think I could modify my Trek to accommodate an XLR output?

DINpluggedIN

Here's a schematic for the AO-28:

http://www.captain-foldback.com/Hammond_sub/schematics/ao28.jpg

In the upper right corner is the output transformer. Note that its center-tap is grounded, and that the two 'G' terminals are just different polarity with respect to ground. That would indeed make it a balanced output. Whether taking advantage of that would help with the hum/noise is hard to say -- rather than being due to the method of output connection, it might just be caused by failing filter capacitors or other problem in the preamp itself.

scarecrowbob

I'll second what other have written: noise or hum in a system with less than 30 or so feet of wiring won't be fixed by balancing the wiring.

The balanced output configuration is for long runs with a Hammond to a 122 type Leslie. Sound like you need to either find the source of the hum - as suggested bad cap in the power supply probably. Is the Hum a new problem ?

May be worth if you love and want to keep the Hammond forever to have it professionally checked out if troubleshooting / researching it yourself is beyond your abilities. No shame in that for a fine instrument.

Maybe I should clarify what I mean by the "hum". It's not really a 60-cycle (open ground) hum but rather background "noise" in different frequency ranges, really strange. I do get a nasty upper frequency hum if I touch one of the percussion tubes, a 6C4. I removed all 3 percussion tubes from the preamp, but it didn't make much difference. What did make a difference was disabling the internal speakers by removing all of the main power amp tubes. Someone on another board suggested to remove the leads from the GG terminals to the internal amp and connect my Trek box to both of these terminals. I also just got a can of DeOxit and plan to clean all the tube pins and sockets (drawbars need cleaning too!).

If none of this improves the signal quality, I'll probably have to look at replacing the preamp caps. Thanks again for the suggestions!

ClavAnother

is your 6c4 microphonic?

Welcome to Hammond crosstalk.

Very microphonic, as is the 12AU7 next to it. However, removing these tubes from the preamp didn't affect the sound at all, it only disabled the percussion.

Interesting, I'll have to check the ground connections. Read this on HammondWiki:

Bad, or weak tubes in the finals of your amplifier are another common cause of hum. If your hum gets loud when you initially turn on your organ, then gradually disappears, this is likely to be your problem. (Replace the finals in pairs.)

Sometimes when starting the organ, I do notice a bit of 60 cycle hum that gradually disappears as it warms up. Do you know which preamp tubes would be the finals in the circuit?

• 1 year later...

I hope you see this! There is so much mis-information on wiring a "line out" from a Hammond console. ONE G AND GROUND DOES NOT WORK!!! It will give you a markedly inferior signal, with lots of noise, just as you describe! The Motion Sound circuit suggested here is wrong!

The Hammond Pre-amp has a "balanced line" out: two Gs and ground. In order to go to an "unbalanced line" (the common 1/4" line used in instrument amplifiers and Hi-fi) you must use a matching transformer. Use the 1:1.1 matching transformer sold for the Leslie 122xb. Easily available from many sources, costs about 30$. Wire the THREE input wires to BOTH Gs and Ground, and then attach the two output wires to your Trek II box. You will immediately notice that you are now getting the proper sound. No, you don't get Leslie without a Leslie, but the difference in tone quality and noise will be immediately apparent. Believe me, I struggled with this for a year before I got the right info! I wired my A-100 to a Motion Sound Pro-3x, through a Trek II box and got nothing but junk. Yes, I got a signal, but it sounded dead, shrill and noisy. I put in the matching transformer and wow! What a difference. I suspect this mis-information has arisen because of the idea that a Hammond tonewheel organ sounds like garbage through anything but a Leslie. Of course, without rotating horns or baffles (or digital sim) you get no "lez", but a decent sound, the correct organ sound can be gotten. Try it, and if you don't think the difference is worth 30$ I will buy the transformer from you!

Again: one G and ground gives a markedly inferior signal! The balanced line output of the pre-amp must be converted to a high-impedance (relatively) unbalanced line to go to an effects loop or standard instrument amp or any combonation thereof. And that is done with a matching transformer. In fact, that is what the transformer in the Leslie "kit" does when wiring an unbalanced input Leslie to a balanced-output Hammond pre-amp. By the way, it also works in reverse, if you have a desire to run an electric guitar or other instrument through a balanced input Hammond tone cabinet.

Please try this method.

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There's a very neat and nice post office opened 24 hours in Arrivals zone (2nd floor), where among other things you can browse the interent for 200R ($8) / hour, use a printer, and charge your mobile phone. There's also wi-fi in TGI Friday's restaurant (2nd floor, Arrivals). There's a bar and a good grocery store in the Arrivals area, both opened 24 hours.

A few restaurants are scattered in the departures area (after the check-in counters), the only ones worth attention are Tajmahal restaurant (located next to Terminals 6-9, upstairs) and the Irish bar - the favourite among transit passengers. If you end up waiting for your flight, it’s better to go to one of these two places (by the way, you can plug in your laptop there).

The departure and arrival area outside of the check-in area have a few 24-hour food and souvenirs shops, pharmacy, cafes (a meal for about $10, drink - $2-$5), bank and exchange offices. The airport is located about 15 km to the north outside of Moscow, 5km to the right from Moscow - St Petersburg highway.

The new Terminal 3 was opened recently and it's much better than SVO2, but not all the flights arrive there, yet. 

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In Transit: Notes from the Underground

Jun 06 2018.

Spend some time in one of Moscow’s finest museums.

Subterranean commuting might not be anyone’s idea of a good time, but even in a city packing the war-games treasures and priceless bejeweled eggs of the Kremlin Armoury and the colossal Soviet pavilions of the VDNKh , the Metro holds up as one of Moscow’s finest museums. Just avoid rush hour.

The Metro is stunning and provides an unrivaled insight into the city’s psyche, past and present, but it also happens to be the best way to get around. Moscow has Uber, and the Russian version called Yandex Taxi , but also some nasty traffic. Metro trains come around every 90 seconds or so, at a more than 99 percent on-time rate. It’s also reasonably priced, with a single ride at 55 cents (and cheaper in bulk). From history to tickets to rules — official and not — here’s what you need to know to get started.

A Brief Introduction Buying Tickets Know Before You Go (Down) Rules An Easy Tour

A Brief Introduction

Moscow’s Metro was a long time coming. Plans for rapid transit to relieve the city’s beleaguered tram system date back to the Imperial era, but a couple of wars and a revolution held up its development. Stalin revived it as part of his grand plan to modernize the Soviet Union in the 1920s and 30s. The first lines and tunnels were constructed with help from engineers from the London Underground, although Stalin’s secret police decided that they had learned too much about Moscow’s layout and had them arrested on espionage charges and deported.

The beauty of its stations (if not its trains) is well-documented, and certainly no accident. In its illustrious first phases and particularly after the Second World War, the greatest architects of Soviet era were recruited to create gleaming temples celebrating the Revolution, the USSR, and the war triumph. No two stations are exactly alike, and each of the classic showpieces has a theme. There are world-famous shrines to Futurist architecture, a celebration of electricity, tributes to individuals and regions of the former Soviet Union. Each marble slab, mosaic tile, or light fixture was placed with intent, all in service to a station’s aesthetic; each element, f rom the smallest brass ear of corn to a large blood-spattered sword on a World War II mural, is an essential part of the whole.

The Metro is a monument to the Soviet propaganda project it was intended to be when it opened in 1935 with the slogan “Building a Palace for the People”. It brought the grand interiors of Imperial Russia to ordinary Muscovites, celebrated the Soviet Union’s past achievements while promising its citizens a bright Soviet future, and of course, it was a show-piece for the world to witness the might and sophistication of life in the Soviet Union.

It may be a museum, but it’s no relic. U p to nine million people use it daily, more than the London Underground and New York Subway combined. (Along with, at one time, about 20 stray dogs that learned to commute on the Metro.)

In its 80+ year history, the Metro has expanded in phases and fits and starts, in step with the fortunes of Moscow and Russia. Now, partly in preparation for the World Cup 2018, it’s also modernizing. New trains allow passengers to walk the entire length of the train without having to change carriages. The system is becoming more visitor-friendly. (There are helpful stickers on the floor marking out the best selfie spots .) But there’s a price to modernity: it’s phasing out one of its beloved institutions, the escalator attendants. Often they are middle-aged or elderly women—“ escalator grandmas ” in news accounts—who have held the post for decades, sitting in their tiny kiosks, scolding commuters for bad escalator etiquette or even bad posture, or telling jokes . They are slated to be replaced, when at all, by members of the escalator maintenance staff.

For all its achievements, the Metro lags behind Moscow’s above-ground growth, as Russia’s capital sprawls ever outwards, generating some of the world’s worst traffic jams . But since 2011, the Metro has been in the middle of an ambitious and long-overdue enlargement; 60 new stations are opening by 2020. If all goes to plan, the 2011-2020 period will have brought 125 miles of new tracks and over 100 new stations — a 40 percent increase — the fastest and largest expansion phase in any period in the Metro’s history.

Facts: 14 lines Opening hours: 5 a.m-1 a.m. Rush hour(s): 8-10 a.m, 4-8 p.m. Single ride: 55₽ (about 85 cents) Wi-Fi network-wide

Buying Tickets

• Ticket machines have a button to switch to English.
• You can buy specific numbers of rides: 1, 2, 5, 11, 20, or 60. Hold up fingers to show how many rides you want to buy.
• There is also a 90-minute ticket , which gets you 1 trip on the metro plus an unlimited number of transfers on other transport (bus, tram, etc) within 90 minutes.
• Or, you can buy day tickets with unlimited rides: one day (218₽/ US$4), three days (415₽/US$7) or seven days (830₽/US$15). Check the rates here to stay up-to-date.
• If you’re going to be using the Metro regularly over a few days, it’s worth getting a Troika card , a contactless, refillable card you can use on all public transport. Using the Metro is cheaper with one of these: a single ride is 36₽, not 55₽. Buy them and refill them in the Metro stations, and they’re valid for 5 years, so you can keep it for next time. Or, if you have a lot of cash left on it when you leave, you can get it refunded at the Metro Service Centers at Ulitsa 1905 Goda, 25 or at Staraya Basmannaya 20, Building 1.
• You can also buy silicone bracelets and keychains with built-in transport chips that you can use as a Troika card. (A Moscow Metro Fitbit!) So far, you can only get these at the Pushkinskaya metro station Live Helpdesk and souvenir shops in the Mayakovskaya and Trubnaya metro stations. The fare is the same as for the Troika card.
• You can also use Apple Pay and Samsung Pay.

Rules, spoken and unspoken

No smoking, no drinking, no filming, no littering. Photography is allowed, although it used to be banned.

Stand to the right on the escalator. Break this rule and you risk the wrath of the legendary escalator attendants. (No shenanigans on the escalators in general.)

Get out of the way. Find an empty corner to hide in when you get off a train and need to stare at your phone. Watch out getting out of the train in general; when your train doors open, people tend to appear from nowhere or from behind ornate marble columns, walking full-speed.

Always offer your seat to elderly ladies (what are you, a monster?).

An Easy Tour

This is no Metro Marathon ( 199 stations in 20 hours ). It’s an easy tour, taking in most—though not all—of the notable stations, the bulk of it going clockwise along the Circle line, with a couple of short detours. These stations are within minutes of one another, and the whole tour should take about 1-2 hours.

Start at Mayakovskaya Metro station , at the corner of Tverskaya and Garden Ring,  Triumfalnaya Square, Moskva, Russia, 125047.

1. Mayakovskaya.  Named for Russian Futurist Movement poet Vladimir Mayakovsky and an attempt to bring to life the future he imagined in his poems. (The Futurist Movement, natch, was all about a rejecting the past and celebrating all things speed, industry, modern machines, youth, modernity.) The result: an Art Deco masterpiece that won the National Grand Prix for architecture at the New York World’s Fair in 1939. It’s all smooth, rounded shine and light, and gentle arches supported by columns of dark pink marble and stainless aircraft steel. Each of its 34 ceiling niches has a mosaic. During World War II, the station was used as an air-raid shelter and, at one point, a bunker for Stalin. He gave a subdued but rousing speech here in Nov. 6, 1941 as the Nazis bombed the city above.

Take the 3/Green line one station to:

2. Belorusskaya. Opened in 1952, named after the connected Belarussky Rail Terminal, which runs trains between Moscow and Belarus. This is a light marble affair with a white, cake-like ceiling, lined with Belorussian patterns and 12 Florentine ceiling mosaics depicting life in Belarussia when it was built.

Transfer onto the 1/Brown line. Then, one stop (clockwise) t o:

3. Novoslobodskaya.  This station was designed around the stained-glass panels, which were made in Latvia, because Alexey Dushkin, the Soviet starchitect who dreamed it up (and also designed Mayakovskaya station) couldn’t find the glass and craft locally. The stained glass is the same used for Riga’s Cathedral, and the panels feature plants, flowers, members of the Soviet intelligentsia (musician, artist, architect) and geometric shapes.

Go two stops east on the 1/Circle line to:

4. Komsomolskaya. Named after the Komsomol, or the Young Communist League, this might just be peak Stalin Metro style. Underneath the hub for three regional railways, it was intended to be a grand gateway to Moscow and is today its busiest station. It has chandeliers; a yellow ceiling with Baroque embellishments; and in the main hall, a colossal red star overlaid on golden, shimmering tiles. Designer Alexey Shchusev designed it as an homage to the speech Stalin gave at Red Square on Nov. 7, 1941, in which he invoked Russia’s illustrious military leaders as a pep talk to Soviet soldiers through the first catastrophic year of the war.   The station’s eight large mosaics are of the leaders referenced in the speech, such as Alexander Nevsky, a 13th-century prince and military commander who bested German and Swedish invading armies.

One more stop clockwise to Kurskaya station,  and change onto the 3/Blue  line, and go one stop to:

5. Baumanskaya.   Opened in 1944. Named for the Bolshevik Revolutionary Nikolai Bauman , whose monument and namesake district are aboveground here. Though he seemed like a nasty piece of work (he apparently once publicly mocked a woman he had impregnated, who later hung herself), he became a Revolutionary martyr when he was killed in 1905 in a skirmish with a monarchist, who hit him on the head with part of a steel pipe. The station is in Art Deco style with atmospherically dim lighting, and a series of bronze sculptures of soldiers and homefront heroes during the War. At one end, there is a large mosaic portrait of Lenin.

Stay on that train direction one more east to:

6. Elektrozavodskaya. As you may have guessed from the name, this station is the Metro’s tribute to all thing electrical, built in 1944 and named after a nearby lightbulb factory. It has marble bas-relief sculptures of important figures in electrical engineering, and others illustrating the Soviet Union’s war-time struggles at home. The ceiling’s recurring rows of circular lamps give the station’s main tunnel a comforting glow, and a pleasing visual effect.

Double back two stops to Kurskaya station , and change back to the 1/Circle line. Sit tight for six stations to:

7. Kiyevskaya. This was the last station on the Circle line to be built, in 1954, completed under Nikita Khrushchev’ s guidance, as a tribute to his homeland, Ukraine. Its three large station halls feature images celebrating Ukraine’s contributions to the Soviet Union and Russo-Ukrainian unity, depicting musicians, textile-working, soldiers, farmers. (One hall has frescoes, one mosaics, and the third murals.) Shortly after it was completed, Khrushchev condemned the architectural excesses and unnecessary luxury of the Stalin era, which ushered in an epoch of more austere Metro stations. According to the legend at least, he timed the policy in part to ensure no Metro station built after could outshine Kiyevskaya.

Change to the 3/Blue line and go one stop west.

8. Park Pobedy. This is the deepest station on the Metro, with one of the world’s longest escalators, at 413 feet. If you stand still, the escalator ride to the surface takes about three minutes .) Opened in 2003 at Victory Park, the station celebrates two of Russia’s great military victories. Each end has a mural by Georgian artist Zurab Tsereteli, who also designed the “ Good Defeats Evil ” statue at the UN headquarters in New York. One mural depicts the Russian generals’ victory over the French in 1812 and the other, the German surrender of 1945. The latter is particularly striking; equal parts dramatic, triumphant, and gruesome. To the side, Red Army soldiers trample Nazi flags, and if you look closely there’s some blood spatter among the detail. Still, the biggest impressions here are the marble shine of the chessboard floor pattern and the pleasingly geometric effect if you view from one end to the other.

Keep going one more stop west to:

9. Slavyansky Bulvar.  One of the Metro’s youngest stations, it opened in 2008. With far higher ceilings than many other stations—which tend to have covered central tunnels on the platforms—it has an “open-air” feel (or as close to it as you can get, one hundred feet under). It’s an homage to French architect Hector Guimard, he of the Art Nouveau entrances for the Paris M é tro, and that’s precisely what this looks like: A Moscow homage to the Paris M é tro, with an additional forest theme. A Cyrillic twist on Guimard’s Metro-style lettering over the benches, furnished with t rees and branch motifs, including creeping vines as towering lamp-posts.

Stay on the 3/Blue line and double back four stations to:

10. Arbatskaya. Its first iteration, Arbatskaya-Smolenskaya station, was damaged by German bombs in 1941. It was rebuilt in 1953, and designed to double as a bomb shelter in the event of nuclear war, although unusually for stations built in the post-war phase, this one doesn’t have a war theme. It may also be one of the system’s most elegant: Baroque, but toned down a little, with red marble floors and white ceilings with gilded bronze c handeliers.

Jump back on the 3/Blue line  in the same direction and take it one more stop:

11. Ploshchad Revolyutsii (Revolution Square). Opened in 1938, and serving Red Square and the Kremlin . Its renowned central hall has marble columns flanked by 76 bronze statues of Soviet heroes: soldiers, students, farmers, athletes, writers, parents. Some of these statues’ appendages have a yellow sheen from decades of Moscow’s commuters rubbing them for good luck. Among the most popular for a superstitious walk-by rub: the snout of a frontier guard’s dog, a soldier’s gun (where the touch of millions of human hands have tapered the gun barrel into a fine, pointy blade), a baby’s foot, and a woman’s knee. (A brass rooster also sports the telltale gold sheen, though I am told that rubbing the rooster is thought to bring bad luck. )

Now take the escalator up, and get some fresh air.

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The Trek ® 520 voltmeters are not your typical hand-held field-meter. Their measurement technology provides surface voltage measurements that are essentially independent of the sensor probe-to-measured surface spacing. The Trek ® 520 is available in two versions: 520-1 and 520-2. The Trek ®  520-1 has a digital meter to display the measured voltage. On the other hand, the Trek ® 520-2 has an analog output monitor in addition to the digital display. This analog output monitor can be used to record the measured voltage or to view it on an oscilloscope. 

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• Measurement Accuracy:  Better than ±5% of full scale over the recommended probe-to-surface spacing
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The Trek Model 520 (±2kV) Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments.  These are an ideal solution for when quick voltage measurements are required, allowing for a more cost effective solution then an oscilloscope.  Model 520 is available in two versions. The 520-1 has a digital meter to display the measured voltage. The 520-2 has an analog output monitor in addition to the digital display.

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The Trek Model 520 (±2kV) and Model 523 (±20kV) Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments.

These two voltmeters utilize a measurement technique that overcomes the disadvantage of the typical hand-held field-meter by providing surface voltage measurements which are essentially independent of the sensor probe-to-measured surface spacing.

Model 520 Key Specifications  

• Measurement Range: 0 to ±2 kV DC 

•  Measurement Accuracy: Better than ±5% of full scale over the entire recommended probe-to-surface separation range of 5 mm to 25 mm 

•  Speed of Response (10% - 90%): Less than 25 ms for a 0 to ±2 kV input step change (520-2 Voltage Monitor Output) 

Model 523 Key Specifications  

•  Measurement Range: 0 to ±20 kV DC 

•  Measurement Accuracy: Better than ±5% of full scale over the entire recommended probe-to-surface separation range of 30 mm to 60 mm 

•  Sampling Rate: 2.5 readings per second 

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Trek Electrostatic Voltmeter Instruments 2 Pages

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About Trek: A Successful Company with Acknowledged Leadership Qualities Founded on Technology TREK, INC. was established in 1968 to serve the needs of the electrophotography industry for highly accurate, stable, costeffective measurement instrumentation and devices. Novel probe design technology provided the foundation for the company's first electrostatic voltmeter, which quickly became the industry standard. Trek's design ensures highly accurate measurements under extreme conditions. Growth through Innovation In the decades that followed, Trek established itself as a designer and manufacturer of high quality instrumentation. Innovative designs and unique solutions have fueled product development over the years. Trek developed the world's first allsolid-state, high-voltage, high-speed, DCstable amplifier, which is now the product of choice for medium-current ion implantation systems in semiconductor fabrication facilities around the world. As a result of Trek's close working relationship with its customers, new designs are constantly being created to answer the needs of industry and R&D. Technical Expertise and Application Knowledge Our scientifically based measurement expertise, coupled with our application knowledge, has enabled us to establish an enviable position in the markets we serve. We are the experts when it comes to highly accurate measurement instruments and high voltage amplifiers, and the technology that drives them. Customers can depend on Trek to understand both the technical and practical aspects of an application. In many cases Trek is viewed as a virtual member of the customer's product development team. Investing in the Future In response to the needs of the marketplace, Trek recently established the Trek Technology Center in Lockport, NY as a facility for R&D and Engineering. In addition, a close working relationship with the nearby State University of New York at Buffalo assures that Trek has access to an extensive array of testing equipment and expertise to complement Trek's internal capabilities. To enable future growth for the company, Trek's headquarters and manufacturing recently relocated to a refurbished 40,000 sq ft facility, also in Lockport. TREK, INC. Precision Measurement of Electrostatic Voltage Enabled by Trek Electrostatic Voltmeter Instruments Novel Probe Design Trek is an expert in utilizing technology to enable the precise measurement of electrostatic voltage and was the pioneer in noncontacting measurement methods for the electrophotography industry. A novel approach to probe design provided the foundation for the company's first electrostatic voltmeter, which quickly became the industry standard. Trek voltmeters, both then and now, utilize a design that ensures highly accurate measurements under extreme conditions, differentiating them from other products in the marketplace. Model 6000B-7C Probe Performance in Diverse Applications Trek noncontacting electrostatic voltmeter instruments are high performance devices that provide outstanding measurement speed and accuracy along with high surface resolution and no arc over. The voltmeter probes are designed to be less sensitive to dust particulates, enabling usage in diverse applications. Probe options include high temperature, high sensitivity, high resolution, transparent, miniature, and vacuumfriendly designs. Options also exist for probe aperture size, end/side view detection and body shape. Trek has a well-respected reputation for excellence. We are the premier resource for electrostatic measurement and highvoltage solutions due to our product leadership and engineering excellence. Committed to the Global Marketplace Model 341B Electrostatic Voltmeter Long before globalization was popular, TREK, INC. established Trek Japan KK in Tokyo, Japan for the purpose of providing sales, application engineering support and service to customers in Japan and elsewhere in the Pacific Rim region. A global sales and service network now exists enabling Trek to serve the needs of customers throughout the world. Capability Beyond Industry Norm Trek's standard capabilities go well beyond the norm for others in this industry. What others call special, we call standard. Trek electrostatic voltmeters provide measurement ranges up to ±20 kV, accuracies to the millivolt level, and speed of response to 50 microseconds for a 1 kV step. And Trek can go beyond what we call standard, to address application-specific requirements on a custom basis. Model 370 Electrostatic Voltmeter Ideal for Critical Operations Trek's electrostatic voltmeters are ideally suited for use in critical operations associated with electrophotography, semiconductor, LCD and other processes where voltages need to be precisely measured and controlled for process optimization, or where charge accumulation (and electrostatic discharge events) pose a threat to production yields or product quality. By placing Trek's instruments on-line within a process, real time feedback and control is possible. Product Innovations for the Future ® Trek’s ultra-high impedance Infinitron voltmeter technology advances the state of the art, enabling precision and accuracy when an application requires surface contact measurements with virtually zero charge exchange upon probe contact. This need for site-specific contacting measurement is taking on a greater importance as electronics are miniaturized, and other critical surface phenomena are being scrutinized. TREK - Experts in Electrostatic Measurement and High Voltage Power Amplifiers TREK, INC. 190 Walnut Street • Lockport, NY 14094 • 800-FOR TREK 716-438-7555 • 716-201-1804 (fax) • www.trekinc.com • [email protected] Measurement and Power SolutionsTM www.trekinc.com TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK 716-438-7555 • 716-201-1804 (fax) • www.trekinc.com • [email protected]

Electrostatic Voltmeter Selection Table ESVM Model Output Voltage Range (DC or peak AC) Voltage Monitor Output Accuracy (better than) Probe Models (order separately unless otherwise noted) 3450 Standard 3453/3455 High-Temperature, High-Vacuum Speed of Response (10-90%) (less than) 3800 Miniature 3870 High-Speed 7000 Standard Special Features Typical Applications High voltage, high speed Electrostatic research & development, charge accumulation monitoring of LCD production processes, monitoring surface potentials in electrostatic painting processes, electrostatic potential measurement on...

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Advantech TREK-520 User Manual

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Summary of contents for advantech trek-520.

• Page 1 U s e r M a n u a l TREK-520 Computer...
• Page 2 Because of Advantech’s high quality-control standards and rigorous testing, most of our customers never need to use our repair service. If an Advantech product is defective, it will be repaired or replaced at no charge during the warranty period.
• Page 3 Declaration of Conformity This product has passed the CE test for environmental specifications. T est conditions for passing included the equipment being operated within an industrial enclosure. In order to protect the product from being damaged by ESD (Electrostatic Discharge) and EMI leakage, we strongly recommend the use of CE-compliant industrial enclosure products.
• Page 4 Caution: This Installation Guide is intended for use by the professional wireless LAN system installer. The device cannot be sold retail, to the general public or by mail order. It must be sold to dealers or have strict marketing control. Warning: It is the responsibility of the professional installer to ensure that the system is used exclusively for fixed, point-to-point operations.
• Page 5 Visit the Advantech web site at for the www.advantech.com/support latest information about the product. Contact the distributor, sales representative, or Advantech's customer service center for technical support if you need additional assistance. Please have the following information ready before you call: –...
• Page 6 Before setting up, check that the items listed below are included, in good condition. If any item does not accord with the table, please contact your dealer immediately. TREK-520 series Computing Box Accessories for TREK-520 Warranty card Power cord: DC power inlet cable Videio in/CAN cable “Drivers, Utilities and User Manual"...
• Page 7 The sound pressure level at the operator's position according to IEC 704-1:1982 is no more than 70 dB (A). DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech disclaims all responsibility for the accuracy of any statements contained herein.
• Page 8 Entsorgen Sie Batterien nach Anweisung des Herstellers. Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 T eil 1000 beträgt 70dB(A) oder weiger. Haft ungsausschluss: Die Bedienungsanleitungen wurden entsprechend IEC- 704-1 erstellt. Advantech lehnt jegliche Verantwortung für die Richtigkeit der in diesem Zusammenhang getätigten Aussagen ab.
• Page 9 Maintenance: to properly maintain and clean the surfaces, use only approved products or clean with a dry applicator. CompactFlash: Turn off the power before inserting or removing CompactFlash storage cards. European Contact information:  Advantech Europe GmbH  Kolberger Straße 7 D-40599 Düsseldorf, Germany T el: 49-211-97477350 Fax: 49-211-97477300...
• Page 10 Chapter General Information This chapter gives background information on the TREK-520 Computing Box. Sections include: ! Introduction ! General Specifications ! Dimensions...
• Page 11 Introduction The TREK-520 is a dedicated box computer for industrial, transport trucks, buses and taxis. TREK-520 combined with variety of I/O connectors can be connected to devices like OBD-II or TPMS (Tire Pressure Monitoring System). Dual display/dual audio interfaces supporting different resolutions can deliver different applications to different displays;...
• Page 12 Hard off delay: Default 30 seconds. When TREK-520 power is controlled by ignition key and turns off by the key (ignition=off), the TREK-520 will cut off the 5VSB power after 30 seconds. In this event when the shutdown process is longer than 30 seconds, the power will be shut down hard, turning off the TREK-520's power and 5VSB.
• Page 13 (Not including the I/O ports). Enclosure: Ruggedized aluminum without ventilation holes. 1.2.2 Standard PC Functions CPU: TI ARM Cortex-A8 AM3703 800MHz Chipset: Integrated in LE82US15EE BIOS: Award 256 KB Flash BIOS, ACPI 2.0 Compliant. System chipset:. System memory: On board chip up to 1G Serial ports: RS-232, smart Display, WLAN,GPS, WWAN, VIO, USB 2.0, Client Universal serial bus (USB) port: Supports up to three USB2.0.
• Page 14 High/low temperature: -30 ~ 70° C Relative humidity: 10 ~ 95% @ 40° C (non-condensing) Shock: 30 G peak acceleration (11 msec duration) Certifications: CE, FCC, CCC, Emark, CB. Vibration: 5 ~ 500 Hz SAE J1455 4.9.4.2, MIL-STD-810F 514.5 Dimensions Figure 1.1 TREK-520 dimensions...

Page 15: System Setup

• Page 16 A Quick Tour of the TREK-520 Computing box. Before starting to set up the Computing Box, take a moment to become familiar with the locations and purposes of the controls, drives, connectors and ports, which are illustrated in the figures below. When the Computer box is placed inside truck glove cabinet or under the passenger’s seat next to the driver, its front...
• Page 17 Chapter 5 to 10 of this manual. Note! The drivers and utilities used for the TREK-520 are subject to change without notice. If in doubt, check Advantech's website or contact our application engineers for the latest information regarding drivers and utilities.
• Page 18 Chapter 3 Pin Assignments This appendix explains pin assignments on the TREK-520.
• Page 19 3.1 Front Side Connectors 3.2 Rear Side Connectors...

Page 20: Pin Signal

• Page 21 RS-232 / RS-485 / J1708 Connector RS-232 / RS-485 / J1708 Connector Signal Signal RS-232 RTS9 RS-232 RXD9 RS-232 TXD9 RS-232 CTS9 RS-232 Ground RS-485 D- RS-485 D+ J1708 D- J1708 D+ CAN / Video-In Connector CAN / Video-In Connector Signal Signal CAN_H...
• Page 22 Chapter 4 Software demo application setup This appendix explains the software demo application for TREK-520. Sections include: ! Introduction ! How to set up demo application...
• Page 23 2. Click J1939: customer may connect directly to the truck; we use a simulator board below to explain how J1939 protocol can be executed. First, connect to the simulator board to TREK-520 CAN port and console PC, once the simulator is powered on (connect to the truck), you can start...
• Page 24 Figure 4.2 J1939 truck simulator Figure 4.3 Figure 4.4 TREK-520 User Manual www.advantech.com...
• Page 25 CAN Test 1. CAN: Console PC, install [PCAN_USB-to-CAN] test program, and use USB to CAN fixture to connect to TREK-520 CAN port. 2. Execute PCAN-View USB→ Set Baud rate 250kBit/s→ Select [Extended]→OK→ Transmit → New → ID(Hex) key in number → Data key in any number→[Period] key in 100ms→Click [Extended Frame]→OK.
• Page 26 Figure 4. 13 3. Then you may read the data of TREK-520 from Console PC, in the same time, you may also press [Write Data] to write to Console PC. As for Filter Message, it can filter out the message you don’t need, and keep the message you need.
• Page 27 1. For RTC Time setting: You may set year, month, date, and time show as below. Figure 4.5 Figure 4.6 Figure 4. 7 Figure 4. 8                             www.advantech.com...
• Page 28 RTC Alarm Setting: You may also set Alarm time; you may wake up the system by the time you have set. Please refer to below figure 4. Figure 6.9 Power Management 4.3.1 Power management Mechanism Normal Power Management Flow ON_DELAY  OFF_EVENT_DELAY HARD_OFF_DELAY Ignition ON  Ignition OFF System OFF System ON  Send Power  Button Signal  www.advantech.com...
• Page 29 When the HARD_OFF_DELAY is count to zero, the system power is removed abruptly to avoid extra and abnormal power drain from battery. This parameter is fixed with a value of 60 seconds. www.advantech.com After T The system stays off.
• Page 30 4.3.2 Power Management demo program A. Check the files. Make sure that there are two components include in TREK-520 Power Management Tool. One is “AdvXP_CAN.dll”, another one is “TREK-520 Power Manager.exe”. B. Start up the program Execute Power Management tool and you will see a message box shows “Connect OK”.
• Page 31 4.3.3 Power Management Parameter settings The parameters for power management on TREK-520 could be set by Demo program (see the image below) or SDK/API. Figure 4.9 power management demo utility Figure 4.9 Off event delay Off Event Delay – it means after 5 seconds delay from receiving of ignition OFF signal, EC controller will send a shutdown event to make system start shutdown process Figure 4.9 Hard Off delay...
• Page 32 10.147 + 50 x 0.0146 = 10.877 V. Checks which source you’re connecting. DC supply or 12V or 24V battery. Figure 4.9 check 12 or 24 battery Check the ignition signal and see if it’s ON or OFF. www.advantech.com...
• Page 33 C. Read current status The buttons which indicates by red squares can READ the current status of the system. www.advantech.com...
• Page 34 Figure 4.9 Read the value D. Set the value The buttons which indicates by blue squares can SET the value you want to the system. www.advantech.com...
• Page 35 3. Low Delay: When the battery voltage is below certain value you set, it will automatically shut down to prevent the system will consume the battery. 4.3.4 TREK-520 power consumption OS: Windows Embedded Standard Burn-in test V6.0 Idle Mode...
• Page 36 Therefore, customer can decide how to set the sensitivity value when to trigger G-sensor to send signal to CPU and to back end server through WWAN module. G-sensor is located on the motherboard inside the TREK-520. Please refer the link (http://www.analog.com/static/imported-files/data_sheets/ADXL345. pdf) for the G-sensor datasheet.
• Page 37 Appendix This appendix explains the TREK-303 detailed information. www.advantech.com...
• Page 38 Viewing Angle (R/L/B/T) 70° / 70°/ 60°/ 60° Note! The Brightness control is adjusted by the auto light sensor in the front panel as default; it is also defined by button on the front panel by manual. The color LCD display www.advantech.com...
• Page 39 TREK-303 Specification TREK-303 demo SW application program Figure 6. 17 www.advantech.com...
• Page 40 5. Hotkey: You may set the hotkey LED light brightness, the value is from 0 ~100. 6. Key Status: When you press Hot key, the status will change from 0 to 7. Key function Definition: You may set the parameter to connect the application program of the hot key. www.advantech.com...
• Page 41 No part of this publication may be reproduced in any form or by any means, electronic, photocopying, recording or otherwise, without prior written permission of the publisher. All brand and product names are trademarks or registered trademarks of their respective companies. © Advantech Co., Ltd. 2010 www.advantech.com...

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Red Square & Moscow City Tour

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Highlights:.

• Experience medieval Kitay Gorod (China town).
• Wander picturesque Red Square and Alexander Garden.
• Explore grand Christ the Savior Cathedral on our Red Square tour.
• Breathtaking panoramic views from Patriarch bridge.
• Enjoy a hearty lunch on the large open verandah and marvel at the stunning views of the Kremlin.
• Learn about Russian culture from the local through relaxed cultural discussions.

Tour Itinerary:

Red square:.

Russia and Moscow are synonymous with Red Square and the Kremlin and that's hardly surprising as you'll find these places absolutely stunning!

• - Walk-through the Resurrection Gate and don’t forget to flip a coin so you’ll be sure to come back one day!
• - Visit the world's famous Kazan Cathedral .
• - See the State Department Store (GUM), once the Upper Trading Stalls, which were built over a century ago and still operating!
• - Admire the lovely St. Basil's Cathedral! The French diplomat Marquis de Custine commented that it combined "the scales of a golden fish, the enamelled skin of a serpent, the changeful hues of the lizard, the glossy rose and azure of the pigeon's neck" and wondered at "the men who go to worship God in this box of confectionery work".
• - Walk by Lobnoye Mesto (literally meaning "Execution Place", or "Place of Skulls"), once Ivan the Terrible's stage for religious ceremonies, speeches, and important events.
• - Entering the Alexander Garden , you’ll take in spectacular views of Russian architecture from ancient to Soviet times, as well as the Tomb of the Unknown Soldier with an eternal flame. Watch Changing of the Guard Ceremony every hour in summer and every half an hour in winter.

Kitai-gorod:

Stroll along medieval Kitai-gorod with its strong ancient Russia feel, known for its bohemian lifestyle, markets and arts.

• - Nikolskaya Street. Here you will find the Russia's first publishing house, the second oldest monastery, and Ferryn Pharmacy, known as the number one pharmacy back in Soviet times and famous for its Empire-style architecture.
• - Ilinka Street. The financial street of the Kitaigorod (China Town) district, where you’ll find the Gostiny Dvor (Merchant’s Yard), which is now a showroom for Ferraris and Maseratis. The street was designed in the 1790s by Catherine the Great.
• - Varvarka street. The oldest street in Moscow, which dates back to the 14th century, and still has remnants of early Muscovite architecture, such as the Old English Court and the Palace of the Romanov’s.
• - Kamergersky Lane. Only a small road of about 250 meters, it is home to some of the oldest artifacts of the city, as each building holds a fascinating story. Some of Russia's most famous writers, poets, and composers from as far back as the Golden Age of Russian culture, have lived or worked on this lane.

Historic City Center

Walk the historical old center of Moscow with its cool local vibe, including the main Tverskaya street , and indulge in desserts in the first grocery “Eliseev's store” , housed in an 18th century neoclassical building, famous for its baroque interior and decoration.

From our tour. Impressions of our American tourist:

At 3:30, as energy flagged, lunch was on the agenda at a Ukrainian restaurant.  Just in time!  We asked our guide to order for us.  We all had the same thing....borscht (the Ukrainian version has beans and more tomatoes than the Russian version, which has more beets and includes beef). 

The special high bread served is called galushki.  Our main course was golubtsy...a dish of minced meat rolled in braised cabbage leaves.  Both dishes called for optional sour cream as a topping....of course, yes, please....I recommend it. 

Full, satisfied, and completely refreshed, it was off to Red Square and St. Basil's and GUM department store.  Red Square is not so named because of the color of the brick walls of the Kremlin.  Rather the word for 'red' and the word for 'beautiful' are similar in pronunciation....and, there you have it. 

As we made the turn by the National Museum in front of which is the mounted sculpture of the "Marshall of Victory," Giorgy Zhukov from WWII and caught our first view of St. Basil's, my friend and I simultaneously emitted "Oooohhhhh!"  There it was....the iconic onion domes of St. Basil's!  Hooray....it was open until 7....we had about 30 minutes and were allowed in, AND we could take photos with no flash. 

Now, I can give you a taste of what we saw in the other cathedrals in Cathedral Square.  What we learned is that St. Vasily and St. Basil are one in the same....Russian/English.  He was a common man who wandered Moscow unclothed and barefoot.  But, all, even Ivan the Terrible, heeded his opinions derived from his visions.  Ivan had this cathedral built over his tomb. 

As we exited and took photos up close of the onion domes, Inna presented us with chocolate (how did she know we were ready for another energy boost, and we each got a big piece of chocolate.  The baby's name pictured on the wrapper of this famous Russian chocolate is Alyonka....the Russian Gerber baby, don't you think? 

One could wear out the credit card in GUM's (capitalized because it is actually a government abbreviation), but the 'kitty' and my credit card stayed in my pocket as we strolled through the glass-topped arcade. 

We then strolled through some of Moscow's lovely pedestrian streets; paused to listen as a wonderful quartet performed Vivaldi's "Four Seasons" in an underground passage to cross the busy street (hooray!....we DID have our 'classical concert' experience after all; a request Alina tried in vain to fill because none was scheduled those days), saw the Bolshoi, which means 'big' (my friend has yet to recover that their performance schedule did not coincide with our cruise), saw the Central Telegraph Building, dating from the 1930's, and made our way to the Ritz-Carlton to see the night view of Moscow from the rooftop bar, called O2. 

There were fleece blankets to wrap yourself in....yes, it got that cold when the sun set.  We each ordered something hot to drink...the ginger, mint, lemon tea served to me in a parfait glass (for 600 rubles...about $9....you pay for the view here!) was delightful and hit the spot perfectly.  It was time to call it a night....

What you get:

• + A friend in Moscow.
• + Private & customized Moscow tour.
• + An exciting city tour, not just boring history lessons.
• + An authentic experience of local life.
• + Flexibility during the tour: changes can be made at any time to suit individual preferences.
• + Amazing deals for breakfast, lunch, and dinner in the very best cafes & restaurants. Discounts on weekdays (Mon-Fri).
• + A photo session amongst spectacular Moscow scenery that can be treasured for a lifetime.
• + Good value for souvenirs, taxis, and hotels.
• + Expert advice on what to do, where to go, and how to make the most of your time.

*This Moscow city tour can be modified to meet your requirements.

Write your review

2018 Primetime Emmy & James Beard Award Winner

In Transit: Notes from the Underground

Jun 06 2018.

Spend some time in one of Moscow’s finest museums.

Subterranean commuting might not be anyone’s idea of a good time, but even in a city packing the war-games treasures and priceless bejeweled eggs of the Kremlin Armoury and the colossal Soviet pavilions of the VDNKh , the Metro holds up as one of Moscow’s finest museums. Just avoid rush hour.

The Metro is stunning and provides an unrivaled insight into the city’s psyche, past and present, but it also happens to be the best way to get around. Moscow has Uber, and the Russian version called Yandex Taxi , but also some nasty traffic. Metro trains come around every 90 seconds or so, at a more than 99 percent on-time rate. It’s also reasonably priced, with a single ride at 55 cents (and cheaper in bulk). From history to tickets to rules — official and not — here’s what you need to know to get started.

A Brief Introduction Buying Tickets Know Before You Go (Down) Rules An Easy Tour

A Brief Introduction

Moscow’s Metro was a long time coming. Plans for rapid transit to relieve the city’s beleaguered tram system date back to the Imperial era, but a couple of wars and a revolution held up its development. Stalin revived it as part of his grand plan to modernize the Soviet Union in the 1920s and 30s. The first lines and tunnels were constructed with help from engineers from the London Underground, although Stalin’s secret police decided that they had learned too much about Moscow’s layout and had them arrested on espionage charges and deported.

The beauty of its stations (if not its trains) is well-documented, and certainly no accident. In its illustrious first phases and particularly after the Second World War, the greatest architects of Soviet era were recruited to create gleaming temples celebrating the Revolution, the USSR, and the war triumph. No two stations are exactly alike, and each of the classic showpieces has a theme. There are world-famous shrines to Futurist architecture, a celebration of electricity, tributes to individuals and regions of the former Soviet Union. Each marble slab, mosaic tile, or light fixture was placed with intent, all in service to a station’s aesthetic; each element, f rom the smallest brass ear of corn to a large blood-spattered sword on a World War II mural, is an essential part of the whole.

The Metro is a monument to the Soviet propaganda project it was intended to be when it opened in 1935 with the slogan “Building a Palace for the People”. It brought the grand interiors of Imperial Russia to ordinary Muscovites, celebrated the Soviet Union’s past achievements while promising its citizens a bright Soviet future, and of course, it was a show-piece for the world to witness the might and sophistication of life in the Soviet Union.

It may be a museum, but it’s no relic. U p to nine million people use it daily, more than the London Underground and New York Subway combined. (Along with, at one time, about 20 stray dogs that learned to commute on the Metro.)

In its 80+ year history, the Metro has expanded in phases and fits and starts, in step with the fortunes of Moscow and Russia. Now, partly in preparation for the World Cup 2018, it’s also modernizing. New trains allow passengers to walk the entire length of the train without having to change carriages. The system is becoming more visitor-friendly. (There are helpful stickers on the floor marking out the best selfie spots .) But there’s a price to modernity: it’s phasing out one of its beloved institutions, the escalator attendants. Often they are middle-aged or elderly women—“ escalator grandmas ” in news accounts—who have held the post for decades, sitting in their tiny kiosks, scolding commuters for bad escalator etiquette or even bad posture, or telling jokes . They are slated to be replaced, when at all, by members of the escalator maintenance staff.

For all its achievements, the Metro lags behind Moscow’s above-ground growth, as Russia’s capital sprawls ever outwards, generating some of the world’s worst traffic jams . But since 2011, the Metro has been in the middle of an ambitious and long-overdue enlargement; 60 new stations are opening by 2020. If all goes to plan, the 2011-2020 period will have brought 125 miles of new tracks and over 100 new stations — a 40 percent increase — the fastest and largest expansion phase in any period in the Metro’s history.

Facts: 14 lines Opening hours: 5 a.m-1 a.m. Rush hour(s): 8-10 a.m, 4-8 p.m. Single ride: 55₽ (about 85 cents) Wi-Fi network-wide

Buying Tickets

• Ticket machines have a button to switch to English.
• You can buy specific numbers of rides: 1, 2, 5, 11, 20, or 60. Hold up fingers to show how many rides you want to buy.
• There is also a 90-minute ticket , which gets you 1 trip on the metro plus an unlimited number of transfers on other transport (bus, tram, etc) within 90 minutes.
• Or, you can buy day tickets with unlimited rides: one day (218₽/ US$4), three days (415₽/US$7) or seven days (830₽/US$15). Check the rates here to stay up-to-date.
• If you’re going to be using the Metro regularly over a few days, it’s worth getting a Troika card , a contactless, refillable card you can use on all public transport. Using the Metro is cheaper with one of these: a single ride is 36₽, not 55₽. Buy them and refill them in the Metro stations, and they’re valid for 5 years, so you can keep it for next time. Or, if you have a lot of cash left on it when you leave, you can get it refunded at the Metro Service Centers at Ulitsa 1905 Goda, 25 or at Staraya Basmannaya 20, Building 1.
• You can also buy silicone bracelets and keychains with built-in transport chips that you can use as a Troika card. (A Moscow Metro Fitbit!) So far, you can only get these at the Pushkinskaya metro station Live Helpdesk and souvenir shops in the Mayakovskaya and Trubnaya metro stations. The fare is the same as for the Troika card.
• You can also use Apple Pay and Samsung Pay.

Rules, spoken and unspoken

No smoking, no drinking, no filming, no littering. Photography is allowed, although it used to be banned.

Stand to the right on the escalator. Break this rule and you risk the wrath of the legendary escalator attendants. (No shenanigans on the escalators in general.)

Get out of the way. Find an empty corner to hide in when you get off a train and need to stare at your phone. Watch out getting out of the train in general; when your train doors open, people tend to appear from nowhere or from behind ornate marble columns, walking full-speed.

Always offer your seat to elderly ladies (what are you, a monster?).

An Easy Tour

This is no Metro Marathon ( 199 stations in 20 hours ). It’s an easy tour, taking in most—though not all—of the notable stations, the bulk of it going clockwise along the Circle line, with a couple of short detours. These stations are within minutes of one another, and the whole tour should take about 1-2 hours.

Start at Mayakovskaya Metro station , at the corner of Tverskaya and Garden Ring,  Triumfalnaya Square, Moskva, Russia, 125047.

1. Mayakovskaya.  Named for Russian Futurist Movement poet Vladimir Mayakovsky and an attempt to bring to life the future he imagined in his poems. (The Futurist Movement, natch, was all about a rejecting the past and celebrating all things speed, industry, modern machines, youth, modernity.) The result: an Art Deco masterpiece that won the National Grand Prix for architecture at the New York World’s Fair in 1939. It’s all smooth, rounded shine and light, and gentle arches supported by columns of dark pink marble and stainless aircraft steel. Each of its 34 ceiling niches has a mosaic. During World War II, the station was used as an air-raid shelter and, at one point, a bunker for Stalin. He gave a subdued but rousing speech here in Nov. 6, 1941 as the Nazis bombed the city above.

Take the 3/Green line one station to:

2. Belorusskaya. Opened in 1952, named after the connected Belarussky Rail Terminal, which runs trains between Moscow and Belarus. This is a light marble affair with a white, cake-like ceiling, lined with Belorussian patterns and 12 Florentine ceiling mosaics depicting life in Belarussia when it was built.

Transfer onto the 1/Brown line. Then, one stop (clockwise) t o:

3. Novoslobodskaya.  This station was designed around the stained-glass panels, which were made in Latvia, because Alexey Dushkin, the Soviet starchitect who dreamed it up (and also designed Mayakovskaya station) couldn’t find the glass and craft locally. The stained glass is the same used for Riga’s Cathedral, and the panels feature plants, flowers, members of the Soviet intelligentsia (musician, artist, architect) and geometric shapes.

Go two stops east on the 1/Circle line to:

4. Komsomolskaya. Named after the Komsomol, or the Young Communist League, this might just be peak Stalin Metro style. Underneath the hub for three regional railways, it was intended to be a grand gateway to Moscow and is today its busiest station. It has chandeliers; a yellow ceiling with Baroque embellishments; and in the main hall, a colossal red star overlaid on golden, shimmering tiles. Designer Alexey Shchusev designed it as an homage to the speech Stalin gave at Red Square on Nov. 7, 1941, in which he invoked Russia’s illustrious military leaders as a pep talk to Soviet soldiers through the first catastrophic year of the war.   The station’s eight large mosaics are of the leaders referenced in the speech, such as Alexander Nevsky, a 13th-century prince and military commander who bested German and Swedish invading armies.

One more stop clockwise to Kurskaya station,  and change onto the 3/Blue  line, and go one stop to:

5. Baumanskaya.   Opened in 1944. Named for the Bolshevik Revolutionary Nikolai Bauman , whose monument and namesake district are aboveground here. Though he seemed like a nasty piece of work (he apparently once publicly mocked a woman he had impregnated, who later hung herself), he became a Revolutionary martyr when he was killed in 1905 in a skirmish with a monarchist, who hit him on the head with part of a steel pipe. The station is in Art Deco style with atmospherically dim lighting, and a series of bronze sculptures of soldiers and homefront heroes during the War. At one end, there is a large mosaic portrait of Lenin.

Stay on that train direction one more east to:

6. Elektrozavodskaya. As you may have guessed from the name, this station is the Metro’s tribute to all thing electrical, built in 1944 and named after a nearby lightbulb factory. It has marble bas-relief sculptures of important figures in electrical engineering, and others illustrating the Soviet Union’s war-time struggles at home. The ceiling’s recurring rows of circular lamps give the station’s main tunnel a comforting glow, and a pleasing visual effect.

Double back two stops to Kurskaya station , and change back to the 1/Circle line. Sit tight for six stations to:

7. Kiyevskaya. This was the last station on the Circle line to be built, in 1954, completed under Nikita Khrushchev’ s guidance, as a tribute to his homeland, Ukraine. Its three large station halls feature images celebrating Ukraine’s contributions to the Soviet Union and Russo-Ukrainian unity, depicting musicians, textile-working, soldiers, farmers. (One hall has frescoes, one mosaics, and the third murals.) Shortly after it was completed, Khrushchev condemned the architectural excesses and unnecessary luxury of the Stalin era, which ushered in an epoch of more austere Metro stations. According to the legend at least, he timed the policy in part to ensure no Metro station built after could outshine Kiyevskaya.

Change to the 3/Blue line and go one stop west.

8. Park Pobedy. This is the deepest station on the Metro, with one of the world’s longest escalators, at 413 feet. If you stand still, the escalator ride to the surface takes about three minutes .) Opened in 2003 at Victory Park, the station celebrates two of Russia’s great military victories. Each end has a mural by Georgian artist Zurab Tsereteli, who also designed the “ Good Defeats Evil ” statue at the UN headquarters in New York. One mural depicts the Russian generals’ victory over the French in 1812 and the other, the German surrender of 1945. The latter is particularly striking; equal parts dramatic, triumphant, and gruesome. To the side, Red Army soldiers trample Nazi flags, and if you look closely there’s some blood spatter among the detail. Still, the biggest impressions here are the marble shine of the chessboard floor pattern and the pleasingly geometric effect if you view from one end to the other.

Keep going one more stop west to:

9. Slavyansky Bulvar.  One of the Metro’s youngest stations, it opened in 2008. With far higher ceilings than many other stations—which tend to have covered central tunnels on the platforms—it has an “open-air” feel (or as close to it as you can get, one hundred feet under). It’s an homage to French architect Hector Guimard, he of the Art Nouveau entrances for the Paris M é tro, and that’s precisely what this looks like: A Moscow homage to the Paris M é tro, with an additional forest theme. A Cyrillic twist on Guimard’s Metro-style lettering over the benches, furnished with t rees and branch motifs, including creeping vines as towering lamp-posts.

Stay on the 3/Blue line and double back four stations to:

10. Arbatskaya. Its first iteration, Arbatskaya-Smolenskaya station, was damaged by German bombs in 1941. It was rebuilt in 1953, and designed to double as a bomb shelter in the event of nuclear war, although unusually for stations built in the post-war phase, this one doesn’t have a war theme. It may also be one of the system’s most elegant: Baroque, but toned down a little, with red marble floors and white ceilings with gilded bronze c handeliers.

Jump back on the 3/Blue line  in the same direction and take it one more stop:

11. Ploshchad Revolyutsii (Revolution Square). Opened in 1938, and serving Red Square and the Kremlin . Its renowned central hall has marble columns flanked by 76 bronze statues of Soviet heroes: soldiers, students, farmers, athletes, writers, parents. Some of these statues’ appendages have a yellow sheen from decades of Moscow’s commuters rubbing them for good luck. Among the most popular for a superstitious walk-by rub: the snout of a frontier guard’s dog, a soldier’s gun (where the touch of millions of human hands have tapered the gun barrel into a fine, pointy blade), a baby’s foot, and a woman’s knee. (A brass rooster also sports the telltale gold sheen, though I am told that rubbing the rooster is thought to bring bad luck. )

Now take the escalator up, and get some fresh air.

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Church of the Holy Life-Giving Trinity in Nikitniki, Moscow

No comments · Posted by Sergei Rzhevsky in Architecture , Cities , Religion

The Church of the Holy Life-Giving Trinity in Nikitniki (the Church of the Georgian Icon of the Mother of God on Varvarka) is a great example of the Russian (Muscovite) uzorochye of the middle of the 17th century.

It was built by Yaroslavl merchants in Kitay-Gorod, a cultural and historical area within the central part of Moscow , in 1628-1651. In Soviet times, this part of the city was built up with administrative buildings, but the church was preserved and used as a museum. The Church of the Holy Life-Giving Trinity in Nikitniki on Google Maps . Photos by: Vladimir d’Ar .

The Russian (Muscovite) uzorochye is an architectural style formed in the 17th century. It is characterized by intricate forms, an abundance of decor, complexity of composition, and picturesque silhouettes.

This building is a milestone in the history of Russian architecture; it served as a model for many Moscow churches of the second half of the 17th century.

Tags:  churches · Moscow city

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Hand-Held Electrostatic Voltmeters for ESD Applications. The Trek ® 520 voltmeters are not your typical hand-held field-meter. Their measurement technology provides surface voltage measurements that are essentially independent of the sensor probe-to-measured surface spacing. The Trek ® 520 is available in two versions: 520-1 and 520-2.

Advanced Energy's Trek Model 520 (±2 kV) and 523 (±20 kV) hand-held electrostatic voltmeters provide accurate, non-contacting measurements of electrostatic surface voltage. Both are ideal for ESD applications in either ionized or non-ionized environments. CALL FOR PRICING OR TECHNICAL HELP! 805-658-0207 M-F 8am-5pm PST, email: static ...

The Trek Model 520 (±2kV) Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments. These are an ideal solution for when quick voltage measurements are required, allowing for a more cost effective solution then an ...

PAGE 1. Trek Model 520 Series Hand-Held Non-Contacting Electrostatic Voltmeters The Trek Model 520 (±2kV) and Model 523 (±20kV) Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments. PAGE 2. Model 520 and 523 ...

Trek Model 520 Series Hand-Held Non-Contacting Electrostatic Voltmeters The Trek Model 520 (±2kV) and Model 523 (±20kV) Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments. ... 542A Electrostatic Voltmeter with USB ...

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The Trek Model 520 (±2kV) and Model 523 (±20kV) Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments. These two voltmeters utilize a measurement technique that overcomes...

Trek 520 series hand-held non-contacting electrostatic voltmeter. • Accurately measures surface voltage at a wide range of spacings • No need to maintain a fixed spacing • Chopper stabilized for drift-free operation in ionized environments • NIST-traceable Certificate of Calibration provided with each unit. Model : MODEL 520 523.

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Wander picturesque Red Square and Alexander Garden. Explore grand Christ the Savior Cathedral on our Red Square tour. Breathtaking panoramic views from Patriarch bridge. Enjoy a hearty lunch on the large open verandah and marvel at the stunning views of the Kremlin. Learn about Russian culture from the local through relaxed cultural discussions.

Just avoid rush hour. The Metro is stunning andprovides an unrivaled insight into the city's psyche, past and present, but it also happens to be the best way to get around. Moscow has Uber, and the Russian version called Yandex Taxi,butalso some nasty traffic. Metro trains come around every 90 seconds or so, at a more than 99 percent on-time ...

Khoroshyovsky District is an administrative district of Northern Administrative Okrug, and one of the 125 raions of Moscow, Russia. It is 6 kilometers northwest of the Moscow city center. Central to the district is Khodynka Field, which, as an open space in the northwest of Moscow was long the site of agriculture, battles, celebrations and the ...

The Church of the Holy Life-Giving Trinity in Nikitniki (the Church of the Georgian Icon of the Mother of God on Varvarka) is a great example of the Russian (Muscovite) uzorochye of the middle of the 17th century. It was built by Yaroslavl merchants in Kitay-Gorod, a cultural and historical area within the central part of Moscow, in 1628-1651.

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