I get off the battery, now I use 470R as cathode resistor, CCS set to 12.5mA but there is a big difference between the anode voltage of each tube: left triode 125V & right triode 141.4V, it's normal or have I to use other tube with close anode voltage between triodes?
Finally got to have both triodes with the same anode voltage lowering the CCS load to 12mA & 470R as cathode resistor.
Yes, you may even see measured and matched tube pairs on offer with still different enough gm & Ip noted for each section.
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But you play your LP records through Valve Itch which has Ip so you have both 😀
R8 still burns, I changed R9-10 for 68K & changed Q4 for a new one, can be IRF840 damaged? SSHV2 CCS works OK.
Salas will be nice to know the voltages in each position to know when is faulty, and better in the schematic (if you don't have time let me know & I do it for you and post here so you can move later to the 1st post).
It should be showing this kind of rough voltage points for a 350V input 300V output classic example. See if your example follows the voltage distances.
