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technical

  1. A

    Pioneer Spec-1 low output on left channel

    Hi, I have a Spec-1 and the left channel is low. I've been looking at the schematics for the amp and just can't seem to locate some good interim probe points to connect my Oscilloscope to to try and isolate the location of the issue. It seems to me that there is a transistor that has failed...
    • Adeyfk
    • Thread
    • diy help spec-1 technical
    • Replies: 12
    • Forum: DIY
  2. Racingh11

    T03 vs standard 3 lead transistors

    Does anyone have any information on the differences of using metal case mount transistors such as the T0-3 style; compared to the popular current three leg transistors such as the T0-264? Is it just a cost decision the T0-3 aren't used as much now, or is there a difference in performance?
    • Racingh11
    • Thread
    • engineering information technical transistor
    • Replies: 32
    • Forum: Solid State
  3. ccawker

    Loudness switch too loud..Sansui AU717

    ok,so i have this Sansui AU717 it plays great but every once in a while i use my loudness switch and one channel gets very loud while the other just stays the same.It has happened before and for some reason fixed itself and worked fine.Had it on loudness for about a year which worked fine at...
  4. santashooter

    Pioneer SX-434 - Troubleshooting, fuses blow

    Hi there I hope this is the right section for this... So tonight i was out with a friend who has an old SX-434 that her dad gave her. It was in bad shape electronically, but all symptoms seemed like very bad contacts - so out with the deoxit for contact cleaning and all pots and switches were...
  5. B

    Old Sony TA-212A Amplifier, Technical help needed.

    Hey! My name is Bo, and I'm totally new to this forum. (I like it already though). I recently bought a Sony TA-212A Amplifier (Dutch release) second handed. I love it. It's got cool VU meters and get's the sound through my speakers nicely, but I do have one particular problem. When listening to...
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