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Radio Tech · 16th Apr 2018, 1:17 pm

Cured the howling. I should have known really and yes, it's just odd by just swapping the feedback wire and the LS. Mullard circuits are one of the best to work on, all I have to do is get a couple of KT66 valves as spares.

Ken

16th Apr 2018, 1:17 pm	#11
Radio Tech Nonode Join Date: Dec 2012 Location: Bocking, near Braintree, Essex, UK. Posts: 2,071	Re: Trouble with Valve Amp Cured the howling. I should have known really and yes, it's just odd by just swapping the feedback wire and the LS. Mullard circuits are one of the best to work on, all I have to do is get a couple of KT66 valves as spares. Ken