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Vacuum tube rectifier
Vacuum tube rectifier
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Jim R.
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Blind Bottlehead
Re: Vacuum tube rectifier
Reply #15 on:
October 10, 2013, 04:39:14 AM
Could be. Could also be a way to get a 5v supply if you only have a 6.3v winding -- use one parallel set in both lines.
-- Jim
Jim Rebman -- recovering audiophile
Equitech balanced power; uRendu, USB processor -> Musette DAC -> 5670 tube buffer -> Finale Audio F138 FFX -> Cain and Cain Abbys near-field).
s.e.x. 2.1 under construction. Want list: Stereomour II
All ICs homemade (speaker and power next)
Paul Birkeland
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Re: Vacuum tube rectifier
Reply #16 on:
October 10, 2013, 04:59:21 AM
That makes more sense than what I suggested!
Paul "PB" Birkeland
Bottlehead Grunt & The Repro Man
vetmed
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Re: Vacuum tube rectifier
Reply #17 on:
October 10, 2013, 11:32:47 AM
The only HV diodes I have on hand are some 1N5062s which have a forward voltage drop of about 1.1 volts at their rated 2A. Maybe use 4, 2 in parallel back to back with another 2 in parallel? Should half the current demand on the diodes resulting in less forward drop
Robert Lees
Robert Lees
vetmed
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Re: Vacuum tube rectifier
Reply #18 on:
October 19, 2013, 04:56:13 PM
FWIW I installed two 0.1 ohm resistors in series and the voltage is now 5.1 volts, good enough for government work
The B+ dropped a whopping 3 volts
Happy that the rectifier tube will last longer
Regards
Robert Lees
Robert Lees
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