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Boater Sam · 7th Nov 2017, 1:29 pm

Had another quick go at this howler, its more like fast motorboating
A few hundred pfs from EL41 g1 to ground does nothing. 4.7nf anode to ground similarly.
Separated the V1 and V2 screens and gave V2 its own 100k and 0.1uf off the HT line, zilch.
I am going to have to get serious with this set.
Measuring HT voltages today, they are +30v to +40v over but the mains is over 250v AC today. Filaments are at 6.8v AC. Tapping is 230/250v so no leeway there.
But the V1 and V2 screens are at 107v instead of 60v, there is something up with that.
I think I will replace the EL41 when I find a good one in the stock just to satisfy myself that it is OK.

7th Nov 2017, 1:29 pm	#8
Boater Sam Banned Join Date: Dec 2013 Location: Middlewich, Cheshire, UK. & Winter in the Philippines. Posts: 3,897	Re: Oh No! Not another howler. Had another quick go at this howler, its more like fast motorboating A few hundred pfs from EL41 g1 to ground does nothing. 4.7nf anode to ground similarly. Separated the V1 and V2 screens and gave V2 its own 100k and 0.1uf off the HT line, zilch. I am going to have to get serious with this set. Measuring HT voltages today, they are +30v to +40v over but the mains is over 250v AC today. Filaments are at 6.8v AC. Tapping is 230/250v so no leeway there. But the V1 and V2 screens are at 107v instead of 60v, there is something up with that. I think I will replace the EL41 when I find a good one in the stock just to satisfy myself that it is OK.