In Reply to: Schematic shows posted by FenderLover on June 14, 2017 at 06:20:36:
Yes, it's dialed in now. The schematic showed -45V at the bias source AND -45V at the grid which must be wrong, after passing thru resistors.
Now have 396V on plates, about -32 to -33 on grid, and 1.17V at both OP tube cathodes. Sounds better than ever (naturally). Around 42-44mA. Will do more minor tweaking. And gotta drop filament V down from 6.6V AC.All tubes made 1950s.
Thanks for input.
Edits: 06/14/17 06/14/17
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Follow Ups
- RE: Schematic shows - PeterI 07:28:48 06/14/17 (11)
- RE: Schematic shows - Audio Pete 14:47:27 06/15/17 (0)
- That's not correct - Triode_Kingdom 10:16:19 06/14/17 (4)
- RE: That's not correct - Audio Pete 14:44:08 06/15/17 (2)
- RE: That's not correct - Tre' 20:32:20 06/15/17 (0)
- RE: That's not correct - Triode_Kingdom 19:47:42 06/15/17 (0)
- Thanks for info NT - PeterI 16:10:34 06/14/17 (0)
- RE: Schematic shows - FenderLover 07:37:25 06/14/17 (4)
- RE: Schematic shows - PeterI 07:54:45 06/14/17 (3)
- RE: Schematic shows - FenderLover 09:24:00 06/14/17 (2)
- RE: Schematic shows 5U4 5V4 - PeterI 10:24:22 06/14/17 (1)
- RE: Schematic shows 5U4 5V4 - FenderLover 16:50:10 06/14/17 (0)