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Old 27th Feb 2020, 1:27 am   #4
ajgriff
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Join Date: May 2004
Location: Halifax, West Yorkshire, UK.
Posts: 2,583
Default Re: Grundig Concert Boy 1100 (again)

What's actually wrong with the radio? Can't find any reference to it in earlier threads although I may have missed it. A few voltage checks and basic signal tracing can often isolate faulty components so that random desoldering and testing can be avoided. As long as you're not getting more than about 16V across the rectifier it shouldn't matter as the voltage to the rest of the circuit is largely determined by the zener diode further down the line.

Seventies Grundigs are decent sets as Leon says.

Alan
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