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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: Update posted by vinnie2 on May 25, 2016 at 12:33:07:
IMO/IME, You would be better off going for a DC 45 final circuit and using something like a Triad C56-U as an input choke to get the B+ a bit higher.For the cap coupled final, you will need to drop more voltage off the rectifier somehow for lower B+ for the 45 plate, then decouple for the 26 driving stages.
I have done that before with a big power resistor and cap off the rectifier. Or with a power resistor in series with the primary HOT lead on the PT.
The major issue is the HV secondary of the PT in your circuit.
It is better suited for a DC 45 final.
Do you have another PT with a lower HV secondary voltage?
Edits: 05/25/16
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Follow Ups
- RE: Update - deathtube 667 17:10:05 05/25/16 (2)
- RE: Update - vinnie2 17:54:09 05/25/16 (1)
- RE: Update - deathtube 667 03:55:30 05/26/16 (0)
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