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voltage regulator

  1. nsun

    Voltage regulator SA 7700

    Hi! Im new here, need some help with an SA 706 (SA 7700) This European version is on 240 V (or 220V) The protection relay doesn,t engage, and when I measure pin 1 its only 5,3 V... So I suspect something in the 13 V regulator, or before that. The output from trafo is 68,7 VAC (TP 12 - TP 13) or...
    • nsun
    • Thread
    • pa3004 pinoeer sa 706 sa 7700 sa-706 sa-7700 voltage regulator
    • Replies: 15
    • Forum: Pioneer Audio
  2. vintagefeel

    Sherwood S5000 tube why is does it run so hot

    My Sherwood S-5000 tube amp runs extremely hot, can't touch protective plate without burning fingers. I tried a voltage regulator set at 110v, no luck, still burn fingers. All original tubes except rectifier which is Sovtek 5AR4. Any ideas why it is running so hot? What can I do to make it run...
    • vintagefeel
    • Thread
    • 110 120 hot rectifier s-5000 s5000 sherwood tube vintage voltage regulator
    • Replies: 13
    • Forum: Tube Audio
  3. Carbsandcaps

    Can someone explain this voltage regulator circuit? Fisher 301 receiver

    This is on a fisher 301 receiver. I was working fine until I decided to recap it and I accidentally hooked up the 14v tuner circuit (DD on the diagram) to, well, something else. It went poof now I only have about 6 volts out of that circuit. I’ve replaced the 15v zener diodes and tested the 3...
  4. Markus111

    Sencore SG165 Power Supply Question - any experts?

    I picked up an SG165 a little while ago, and I've been having a lot of fun restoring it. I changed all of the electrolytics, and have been able to go through the calibration procedure and get some decent results. One thing continues to bug me though. The voltages from the power supply are...
  5. E

    Looking for replacement 24v voltage regulator for MX113

    I have emailed McIntosh but they have not gotten back to me and I cannot find any information anywhere on the internet. the part number is M 065 7726 and the Q201 on the schematic. Anyone have any experience replacing this part?
  6. tusntuk2

    Kenwood KR-5600 relay/recap project; open relay needs help

    What's the best way to check the output relay in a Kenny KR-5600? This thread is actually about two KR-5600's, one being my trusted old friend that's been working 20 years in original condition, and a second 5600 with an open relay I need to fix, then recap. It is also original, but hints at a...
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