Opus 7 restore

[dieseljeep]

Originally Posted by dieseljeep

I swore off German radios for now! The last two I bought have push-button or selector switch issue. The plastics crumble, when the wrong kind of contact cleaner is used, which is probably any of them.
That's a Telefunken model, isn't it?
Sams had some coverage on German sets, if the were made for north American export. Usually in the form of a servicer, a one or two page folder.

Sams shows an Opus 7, under Telefunken, 341-16.
Also, a 6c4 is a low-mu triode, where a 6ab4 is a higher-mu tube. I depends where it used. If it's used as an FM oscillator, it might not work well.