Mildly interesting: 60 year old soviet frequency counter is first powered up in a long time and still perfectly accurate, never calibrated or recapped 22
This brings back memories of electronics school in the late 1970s – early 1980s. Thanks for the flashback, I just need to see a Dumont scope, and my day is complete!
If you open it up it’s probably filled with very nice looking Soviet ceramic flatpaks and I’d even bet on conformal coatings. Hand-laced wiring is of course a given.
Great find! Personally I would recap and remove any selenium rectifiers that may be hiding inside just to avoid something else stinking up my lab. Shouldn’t be hard to calibrate with modern gear and it would be a fun project.
Most of the soviet measurement equipment was developed with dual-use in mind, so it could be used both for military and civil purposes. Because of that, they spared no expense and used military-grade components with tons of precious metals. That’s why it so durable. I even saw some general-pupose (not specialized) oscilloscopes that could use 50 and 400 Hz power, so they could be powered on an airplane.
The manual is simply amazing. It’s two small books including block diagrams, complete circuit diagrams (folded inside), functionality examples, detailed setup descriptions, troubleshooting and calibrating steps and **a fucking complete parts list** (that itself is half of one book)
Pretty
Wish I could get a hold of such hardware in my country
Beautiful!
According to wikipedia there’s 1 to 5 chance it was made in Ukraine.
🧐
The numbers Mason!
This brings back memories of electronics school in the late 1970s – early 1980s. Thanks for the flashback, I just need to see a Dumont scope, and my day is complete!
Um… this reminded me of [this.](https://en.wikipedia.org/wiki/DeLorean_time_machine#/media/File:Time_Circuits2.jpg)
this woulda been used in a nuclear plant correct?
Honestly recapping something like this would probably knock it out of spec.
If you open it up it’s probably filled with very nice looking Soviet ceramic flatpaks and I’d even bet on conformal coatings. Hand-laced wiring is of course a given.
Great find! Personally I would recap and remove any selenium rectifiers that may be hiding inside just to avoid something else stinking up my lab. Shouldn’t be hard to calibrate with modern gear and it would be a fun project.
Most of the soviet measurement equipment was developed with dual-use in mind, so it could be used both for military and civil purposes. Because of that, they spared no expense and used military-grade components with tons of precious metals. That’s why it so durable. I even saw some general-pupose (not specialized) oscilloscopes that could use 50 and 400 Hz power, so they could be powered on an airplane.
“The numbers Mason, what do they mean???”
The manual is simply amazing.
It’s two small books including block diagrams, complete circuit diagrams (folded inside), functionality examples, detailed setup descriptions, troubleshooting and calibrating steps and **a fucking complete parts list** (that itself is half of one book)
If you guys are into old test equipment, I also have a absolutely stunningly mint looking WWII Tube tester
Survivorship bias is hell of a drug or/and might be full of military grade caps and ICs.
Oh hey a Hameg scope.
I’m really happy that a count down didn’t start
Cross-posting to r/oldeasternelectronics
Please keep this intact (of course recap it but don’t use it for parts or anything)
Those gorgeous nixie tubes 🥰
That display is something out of a wet dream