Thanks !
I'm using other quartets and I've found two that work relatively well (8 EH 6AC7 "Platinum Matched Quad"). Offset is located at -8 and 14Vdc and low to -3 and 8Vdc. Now I feel more code to listen to the amp. I'm listening to it right now, It's totally silent and I like its sound although the sound is a bit "bass" for my taste. In the first and second stages I am using 6189 Sylvania JAN and ECC83 Svetlana W"C" . I'll leave a little time before going through those E80CC... what the hell? I'm going to buy them now ?
About 21K resistor I think that you used a 50K in parallel to 21K . I think that it´s a good idea use parallel resistor here. This resistor is a 3w and runs to around 45º.
Edit update: 47K parallel to 21K, now I have 302Vdc.
Some pics ☺️My amplifier is not finished yet.
I have not been able to order the wiring, finish the LEDs, etc...
Megatron and my "Universal HV PSU"
P.S. yes, I know, the appearance of all my amplifiers are the same. ?
P.S 2º this amp runs HOT like hell