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bias adjust

  1. A

    CR-2020 bias adjustment issue after replacing some transistors

    I got a CR-2020 recently that had some issues on the right channel, and I slipped while probing it and created even more issues. After all the dust settled, I'm left with a right channel that I can't get the bias voltage below 20mV. There is also more THD on the right channel than the left. I...
    • asolochek
    • Thread
    • bias adjust cr2020 thd
    • Replies: 19
    • Forum: Yamaha
  2. mcaddie7

    Eico 2536 Receiver - How to Bias

    Hi all! received an Eico Tube receiver that looked pretty cool for cheap. I checked all of the tubes (same replaced in 69) and they all pass, albeit the 4 matching pairs highlighted in red appear to have more of an “open” according to my tube tester. Anywho, replaced all electrolytic caps and...
    • mcaddie7
    • Thread
    • bias adjust bias adjustement tube amp tube amp help tube receiver
    • Replies: 3
    • Forum: Tube Audio
  3. J

    Tape for Pioneer rt 909

    Hi Guys, I've bought a Recording The Masters SM900, and i've a Pioneer RT909. SM 900 https://static1.squarespace.com/static/62798251da32f57e31bea13d/t/62f2149f22e6b6134c31427e/1660032161030/fiche_sm900_rtm_2022.pdf https://www.recordingthemasters.com/audiotapes Could you please help me to...
    • juniorgroove
    • Thread
    • bias adjust bias adjustement recordingthemasters rt909 tape
    • Replies: 13
    • Forum: Tape
  4. M

    Help Pioneer SA8800 low power and clipping

    Dear all, i need help for this problem (i am quite good in integrated circuits and tubes, not in so complex transistor circuits). I recap the amplifier, clean everything and check the sound live and was quite good. Then i wish to adjust the bias and to do some measurements. I apply with signal...
    • Marckx
    • Thread
    • bias adjust pioneer amplifier power problem sa8800
    • Replies: 9
    • Forum: Pioneer Audio
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