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Klingon-Hifi made in USSR during the cold war

Aleksei said:
Hello,
I was surprised to find a thread like this at Audiokarma. As I see the real interest in USSR HiFi, I can contribute to this and provide some additional information.
Please find below some pics of highly praised among the audiofils in Russia the USSR HiFi integrated amplifier BRIG-001. This unit was among the firs ever in USSR to comply with HiFi standards. The pre-production started in 1975, mass production started in 1976, the price is silk-screened on the back and reads 625 rub. (meaning 3 months average salary of an engineer). The unit weghts 16 kg and easily feeds 2 x 50 W at 4 Ohms with 0.1 THD. The schematic is developed by very talented Russian engineer Anatoly Likhnitsky, who died 18th of May this year (RIP). The initial design was fully discreet and based on silicon transistors with quasi complementary output stage on 2 NPN KT808A 100 V 10 A transistors working in AB mode with 50 mA bias current. All controls, besides balance, are made discreet with silver contacts and selected resistors. There is not a single connector in a unit, all pcbs are soldered manually and signed by an operator. After 37 years of service the unit functions like new, the only thing is to replace 16 electrolytics and re-adjust biasing.
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Welcome to AK, Aleksei and thank you for sharing the data and pictures of this beauty!
 
gladiator335 said:
Welcome to AK!
Are you from Russia?
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Hello,
Yes, I am from St.Petersburg, Russia and I'm very glad to find some people here sharing our mutual interests toward vintage HiFi equipment. Thank you for the warm welcome!
Following my story on one of the most interesting USSR integrated amplifier Brig-001, here is some information on schematic - see attachment in pdf. There is a lot of legends sarrounding this unit. Among other, there is a discussion at Russian HiFi forums regarding the origin of the schematic. According to the developer, the schematic of power amplifier was fully original and was developed by the author in the beginning of 70-th in St.Petersburg and initially tested at authors own home-made amplifier, which was the first prototype of Brig. But there is some information from the author former co-workers that the schematic was taken from some unindentified Yamaha amplifier. This information is based on the rumor that someone saw half-erased Yamaha logo on the "secret drawing" with schematic of Brig-001, while it was launched on pre-production at St.Petersburg's Morphyspribor, the manufacturing facility producing mil grade submarine equipment. There is no clear answer so far. Maybe someone from this forum could identify Yamaha amplifier which could have been the "secret prototype" of this beauty. Anyway it sounds sweeet. The sound is tube-like - may be for someone treble is not crispy enough, but this is a kind of a sound that is not fatiguing and one could listen to it forever especially with classical repertoire.
 

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Aleksei said:
The sound is tube-like - may be for someone treble is not crispy enough, but this is a kind of a sound that is not fatiguing and one could listen to it forever especially with classical repertoire.
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I like a lot that type of sound!
 
Soviet hi fi

St. Petersburg is a beautiful city! Been there couple times (a looooong time ago).
Once again: welcome to AK!

Couple more:

korewt_up078s00.jpg


Reminds me of something, but can't remember what exactly...Sony maybe? :scratch2:

korwet_up028s9.jpg
 
gladiator335 said:
St. Petersburg is a beautiful city! Been there couple times (a looooong time ago).
Once again: welcome to AK!
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Yes, St.Petersburg is a beautiful city especially now at white nights season. Besides, St.Petersburg is a capital of USSR HiFi. Your images are well known to me, especially the second one - this is Korvet preamplifier UP-028, which was produced by Ladoga factory in the mid of 80th. I own a couple of this beautiful HiFi gear and recently repaired one of this units (there was a problem in regulated power supply which provides 2 stabilized voltages +34/-34 and +15/-15 V) - see pictures. The ingenious phono stage is fully discrete and powered by +-34 V, the flat amp stage and tone controls are based on hi-speed ICs. The source selectors are all deported to minimize signal path. The headphone amplifier is powered by +-20 V and has discrete driver stage (see photo). ALL CONTROLS ARE DISCRETE USING SELECTED FIXED RESISTORS AND OSMIUM PLATED CONTACTS. The weight of the unit is 11 kg. It sounds accordingly, espesially paired with "native" power amplifier, Korvet 100UM-048, weighting 22 kg and easily feeding 2x100 W into 8 Ohm and up to 300 W in bridge mode, which is switched by a lever at the back of the unit. This is what we call a Russian HiFi!
 

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Hi all!
I represent to your attention some interesting models of equipment, produced in the USSR.
That had no illusions that the common model, I had to sign pictures of their exhibits...










 
In my photos I want to give you a General idea of what was produced in the USSR.
I intentionally do not provide the characteristics of the equipment. Who are interested, you will find all the necessary information on the Internet.
 
V. Eryomin said:
In my photos I want to give you a General idea of what was produced in the USSR.
I intentionally do not provide the characteristics of the equipment. Who are interested, you will find all the necessary information on the Internet.
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Very interesting and very nice pictures. Thanks for the sharing!
 
Салют-001
The device was created by a joint work of specialists
comrade Riga KB "Orbita" and the public enterprise "Stern-radio" Berlin, Germany
 
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