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Radio Tech · 22nd Apr 2021, 3:52 pm

Hi Gabe001

I did hook up a scope and there is around 100m/v of signal from the oscillator, I am suspecting that either the EF39 is going down as the set warms up or the triode section of the ECH35 is going down. But when the sound has dropped, placing a finger on the grid of the EF39 will bring up the sound. Peculiar fault this, I will get there in the end.

Regards

Ken

22nd Apr 2021, 3:52 pm	#22
Radio Tech Nonode Join Date: Dec 2012 Location: Bocking, near Braintree, Essex, UK. Posts: 2,071	Re: Regentone Hi Gabe001 I did hook up a scope and there is around 100m/v of signal from the oscillator, I am suspecting that either the EF39 is going down as the set warms up or the triode section of the ECH35 is going down. But when the sound has dropped, placing a finger on the grid of the EF39 will bring up the sound. Peculiar fault this, I will get there in the end. Regards Ken