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In Reply to: RE: Schematic shows posted by FenderLover on June 14, 2017 at 07:37:25
I want to get that higher. Still tweaking.
PS: 395-0-395 > 5V4 rect > 20uf 500V film > 5H choke > B+ 403VDC > 50Uf > 900ohm 5W > 50uf > 4Kohm > 334V screen, etc etc
Maybe try a 5U4GB rectifier, if PT can handle extra current needs? A bit more B+. Readjust bias to desired output.
Thanks for advice. I have both 5U4 and 5V4, and 5V4 gives slightly higher B+. I have GZ34 to try as well.
Now at 405v plates, 1.20V at cathode, -32V at grid. Pretty close.
Adjusting bias, I can get the B+ to go up, but cathode voltage drops to around 1V.
Rough calculation of current: 1.21v / 26ohm (each side of 52ohm balance pot) = 46.5mA ?
Anyway, not worried about it much.
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