sta-78

  1. JB8

    Faceplate & Knob Cleaning & Polishing: How do you get it done?

    DISCLAIMER: There may already be an extensive thread (or many of them...) around this but I didn't see it, so thanks in advance for your contribution! Always good to have an updated version of best practices. For some context, I started working on project receivers at the beginning of the...
    • JB8
    • Thread
    • faceplate glass harman kardon 330c knobs polish realistic sta-78 yamaha yamaha cr-420 yamaha receiver
    • Replies: 15
    • Forum: Solid State
  2. vinylisfinyl

    Realistic STA-78 with high voltage on left channel output

    Greetings, fellow stereo curators! I need some assistance from you today regarding high DC voltage on the left channel in our beloved STA-78 receiver. Dad bought it new in the late 70s and passed it on to me, but when he tried using it this summer in our garage it let out the magic smoke after...
    • vinylisfinyl
    • Thread
    • channel high dc offset high voltage output realistic speaker sta 78 sta-78 sta78
    • Replies: 39
    • Forum: Solid State
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