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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: Tube voltage doubler posted by SteveSchecter on May 2, 2016 at 05:23:41:
If each 5U4 has its own, dedicated, CT 5 VAC winding, for the cathode connection, a voltage doubler is OK. Obviously, the plates are paralleled.
Doubler stack caps. should be as large as rectifying device limits allow. Plenty of capacitance in the doubler stack is good for ripple reduction and better rail regulation. SS diodes are definitely at an advantage under these circumstances.
The O/P could insert a CL-90 inrush current limiter in the line between the rectifier winding and the center of the doubler stack. Rail rise would be slightly slowed and 100 muF. caps. in the doubler stack rate to be safe. The NTC thermistor's cold resistance allows for some liberty in cap. value sizing.
Eli D.
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Follow Ups
- RE: Tube voltage doubler - Eli Duttman 08:37:35 05/02/16 (10)
- RE: Tube voltage doubler - Vincin 10:50:19 05/02/16 (9)
- RE: Tube voltage doubler - Eli Duttman 11:58:45 05/02/16 (8)
- RE: Tube voltage doubler - Tre' 14:04:18 05/02/16 (7)
- RE: Tube voltage doubler - PakProtector 10:14:02 05/05/16 (3)
- RE: Tube voltage doubler - Eli Duttman 10:53:48 05/05/16 (2)
- RE: Tube voltage doubler - Tre' 10:26:59 05/06/16 (0)
- RE: Tube voltage doubler - PakProtector 03:06:46 05/06/16 (0)
- Examples - Tre' 08:41:03 05/03/16 (2)
- RE: Examples - hennfarm 07:44:59 05/06/16 (1)
- RE: Examples - Eli Duttman 10:42:45 05/06/16 (0)
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