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powersupply

  1. John Tulett

    ReVox B790 Turntable Erratic Speed Control - Hints & Lessons Learned

    (To conform with file uploading limits a reduced size PDF file containing the figures is attached). Purpose * To share hints and lessons learned from fixing my B790 turntable's speed fluctuations. * This report complements the earlier report, "ReVox B790 Turntable - Motor Servicing Hints &...
    • John Tulett
    • Thread
    • b790 motor issues powersupply revox speed control speed inconsistency wow flutter turntable advice wow & flutter
    • Replies: 0
    • Forum: Turntables
  2. KNielsen

    Safty capacitor??

    Maby a noob question, but still learning... How do I measure with my oscilloskop if a safty capacitor is needed or a good choice at this location when a PSU is build from scratch? Or needed at all?? I know it's frequency related regarding the safty cap value, but how do I measure this? I have a...
    • KNielsen
    • Thread
    • capacitor oscilloscope powersupply psu
    • Replies: 9
    • Forum: DIY
  3. X

    Marantz 2252b relay wont engage… oddly. HELP

    Just picked up this 2252b receiver and the relay doesnt engage 99% of the time. It will engage after an elongated period of time under “aux”. Turn up the volume under aux and it disengages. If started and engaged under “aux” once switched over to FM for example the relay immediately disengages...
    • xalara76
    • Thread
    • marantz2252b marantzrelay powersupply preamplifier relaywontengage
    • Replies: 12
    • Forum: Marantz Audio
  4. X

    Marantz 2325.. weird relay clicks.. bias adjustment wacky..

    Just got a 2325 and its a MONSTER RECEIVER ! Unfortunately its having some weird issues. Relay will engage 9/10 times but no sound just a weird hum almost background noise that doesnt change with volume adjustment. Plugged phone into dubbing out jack and I got sound on both channels but it...
    • xalara76
    • Thread
    • marantz marantz2325 marantzreceiver nosound powersupply relay clicking
    • Replies: 12
    • Forum: Marantz Audio
  5. A

    Lookjng for power supply onky receiver

    Hi there I am looking for a new power supply for my onkyo receiver. Or a replacement. Model HT-R693 that is a number for the complete set with speakers. I was already looking and the receiver model is HT-S7705 After a few minutes 10 to 20 minutes sometimes longer the power supply is making...
    • Adamo83
    • Thread
    • new onkyo powersupply replacement
    • Replies: 3
    • Forum: Solid State
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