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conrad-johnson

  1. I

    Need Help Tracking Down a Cap for My CJ PV8 – 20 µF, 400V AC, 800V DC

    Hey folks on AudiKarma, I’m diving into fixing up my old Conrad-Johnson PV8 preamp, and I’ve hit a snag. The fuse keeps blowing, and after checking the tubes (all good—12AX7s, 5751, and 5965s, no shorts or issues on my multimeter...) , I zeroed in on a capacitor that’s acting up. It’s the big...
    • Ignaciog
    • Thread
    • conrad-johnson pv8
    • Replies: 5
    • Forum: DIY
  2. I

    Help Needed with Conrad Johnson PV-8 Preamp Knob noises and gain bleed

    Hello everyone, I've recently acquired a used Conrad Johnson PV-8 preamplifier. While I'm thrilled with its performance, I've encountered an issue where adjusting the volume, balance, and channel knobs results in a crackling noise. This crackling is especially bothersome with the volume...
  3. ceylon

    tube hifi newbie thread

    hey u guys. im lookin for some guidance on cathode followers and tube preamps. i got a conrad johnson PV8 12ax7 phono, 5751 gain, 5965 cf) and a van alstine fet valve cf RB (12at7 gain, 12au7 cf). how important are the cf tubes to the SQ and presentation? to what extent does the CF affect...
    • ceylon
    • Thread
    • cathode follower conrad-johnson preamp van alstine
    • Replies: 5
    • Forum: Tube Audio
  4. TubieNewbie

    Conrad-Johnson MV55 Triode Mod

    I was reading the manual for my MV55 amplifier and it mentioned that my amp can be modified for triode operation. The following is an excerpt from the manual: Optionally, the MV55 may be reconnected internally for triode operation of the output stage, for exceptionally musical performance, but...
    • TubieNewbie
    • Thread
    • conrad-johnson modification mv55 triode tubes
    • Replies: 2
    • Forum: Tube Audio
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