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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: Use a MOSFET or SCR posted by DAK on August 19, 2016 at 11:22:32:
Any device in series with the B+ will drop voltage. Like I said, a solid state junction is less than a volt drop and in a tube B+ circuit that's hardly significant.
To get more B+ you need more secondary voltage or explore capacitive voltage doubler options.
If it's a small b+ increase you need you can cheat a little by pushing the transformer AC input voltage up with a buck/boost transformer. Remember the step up ratio is in your favor here. But be careful of over heating, I would not go beyond 130 volts AC input.
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Follow Ups
- No gain. - gusser 11:28:42 08/19/16 (6)
- Not only that, - Michael Samra 22:26:03 08/19/16 (0)
- RE: If i add more C i can increase the B+ - DAK 11:56:14 08/19/16 (4)
- Yes - gusser 12:06:25 08/19/16 (3)
- RE: Yes - Tre' 18:42:45 08/22/16 (0)
- RE: Capacitance would increase from 200 to 205 uf - DAK 13:07:29 08/19/16 (1)
- RE: Capacitance would increase from 200 to 205 uf - Ed Sawyer 13:14:46 08/19/16 (0)
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