Vacuum tube rectifier

vetmed · 3723

« previous next »
Pages: 1 2   Go Down

0 Members and 1 Guest are viewing this topic.

Offline Jim R.

  • Hero Member
  • *****
    • Posts: 2194
  • Blind Bottlehead
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)

Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19702
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

Offline vetmed

  • Full Member
  • ***
    • Posts: 245
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

Offline vetmed

  • Full Member
  • ***
    • Posts: 245
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 ;D Happy that the rectifier tube will last longer :)

Regards
   Robert Lees

Robert Lees

Pages: 1 2   Go Up
« previous next »