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Old 26th Nov 2022, 11:49 am   #9
Neil Purling
Nonode
 
Join Date: Jul 2005
Location: Hull, East Yorkshire, UK.
Posts: 2,087
Default Re: Newly found VEF Spidola

If you had a very quiet hiss the audio stage is probably working. Have you tried the trick of standing another working radio immediately next to the Spidola? Just wondering if the Spidola's osc is not running or if the fault is somewhere along the IF strip. After that you may need to use a signal generator if you have one.
But firstly... Can you provide us with an image of the PCB component side, so we can help you to identify the electrolytic capacitors. They are usually in cylindrical aluminium cases. As well as the value & working voltage you have the month & year of manufacture. Well, later stuff usually does
I think that you might have to replace a few capacitors.
What sort of contact-cleaner do you have?
Cleaning the transistor sockets will do no harm at all & you can test them if you wish. I expect they are huge 'top-hat' germanium devices, which the Soviets made for far longer than anyone else.

The original manual may be on the Web. the point being that it usually has a full schematic and a diagram of the board tracks that tell you where the components are.
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