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dc current

  1. H

    C4 preamplifier dc fluctuation

    My C4 is sounding great but despite replacing the trimpots with Bourns the dc fluctuates quite energetically between -170mV and +180mV. Occasionally it will even stray further by another 100 or 200mV. Thoroughly checked all solder joins, switches cleaned etc. My question: are there any...
    • Hifibythekg
    • Thread
    • c-4 capacitor dc current preamplfier transistor yamaha
    • Replies: 24
    • Forum: Yamaha
  2. bibota

    Changing 2230 trimmers

    R765 trimmer behaving unreasonably while being adjusted did quite some damage on my right P750. I intend to replace all pots now. Not at all sure about the power rating though, in the specifications are all marked as "B". Any advice please? This series available at Digikey seems to be...
    • bibota
    • Thread
    • bias dc current p750 pots r765 trimmers
    • Replies: 6
    • Forum: Marantz Audio
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