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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: 6Y6GT/6922 Link to larger schematics and PDF file posted by Tom Bavis on March 30, 2015 at 11:00:33:
Tom,The FET source resistance value is adjustable. That allows for "exact" mirroring of the 2 phases. Sometimes, a little asymmetry sounds better than "dead nuts". A lot of folks like a bit of 2nd order HD. The builder/owner gets to chose. :>D
"A little lower on the 6DJ8 plate would be better."
Do you think changing the CCS load to 7 mA. would be enough to get that tweak done?
"I think more decoupling would be better too, given the large swings in supply current in deep AB."
Diode check valves are already part of the decoupling scheme. Increasing the decoupling cap. value to say 22 muF. would provide extra energy storage for those times when the check valve operates. What say you about this?
Do you have any thoughts about lowering the end to end impedance of the O/P "iron" primary, in order to increase power O/P?
Eli D.
Edits: 03/30/15
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Follow Ups
- RE: 6Y6GT/6922 Link to larger schematics and PDF file - Eli Duttman 13:05:43 03/30/15 (5)
- I plumb forgot the larger decoupling capacitors on the schematic - jyourison 14:21:58 03/31/15 (0)
- Effects of Source to Ground adjustment - jyourison 14:32:43 03/30/15 (3)
- RE: Effects of Source to Ground adjustment - Eli Duttman 17:15:10 03/30/15 (2)
- Reduced 6922 Current (6.5 mA) results are good! - jyourison 21:05:11 03/30/15 (1)
- RE: Reduced 6922 Current (6.5 mA) results are good! - Eli Duttman 08:12:53 03/31/15 (0)
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