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G8HQP Dave · 18th Dec 2010, 10:49 pm

Try the electrolytic before touching the FM alignment. This capacitor is an important part of a ratio detector, although the value is not too critical. In my Bush VHF80 it had gone very low in value (presumably dried out by valve heat) so 'correct' tuning gave worst sound.

18th Dec 2010, 10:49 pm	#6
G8HQP Dave Rest in Peace Join Date: Sep 2008 Location: Solihull, West Midlands, UK. Posts: 4,872	Re: "Fuzzy" FM Try the electrolytic before touching the FM alignment. This capacitor is an important part of a ratio detector, although the value is not too critical. In my Bush VHF80 it had gone very low in value (presumably dried out by valve heat) so 'correct' tuning gave worst sound.