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darlington

  1. R

    SAE MARK XXXIB distorted channel, then loud buzzing.

    Hey what's going on? so when I play music through the amp the left channel is distorted the right channel is clear. when I moved the amp, both channels went completely distorted and I had to unplug it, loud buzzing through the speakers and buzzing around the bad darlington area. I pulled the...
    • robc23
    • Thread
    • 31b amp darlington help mark repair sae transistor xxxib
    • Replies: 30
    • Forum: Solid State
  2. Z

    SX-780 issues fixed now distorted sound

    Title says it all. I had an issue with the Darlington packs one of them blew out because of my stupidity one of the wires touched for a speaker connection. Lesson learned... After reading several threads on this site about replacing them, testing for resistance, so on and so forth, I decided to...
  3. L

    SX-780 Darlington testing

    Hello all, I've been searching for a while and can't seem to find a detailed enough guide on how to test the Darlingtons on my sx 780. I blew a fuse (4A) in it a while ago, when I replaced the fuses, there are no longer the start up clicks. Are the darlingtons fried? or it is the protection...
  4. Chris Dykes

    Transistor Replacements for Darlington/BJTs & Outputs Kenwood KA3700

    Hi All, I've done as much legwork as I can to identify good replacement options for the driver and output transistors in the nice little Kenwood KA3700 amp. I would love opinions on selecting the best replacement options. I see that NTE - while convenient - is often maligned as being low or...
    • Chris Dykes
    • Thread
    • darlington kenwood ka transistor equivalent transistor replacement vintage 70's kenwood
    • Replies: 17
    • Forum: Solid State
  5. PTL-Pioneer

    SX-690 - No Output - Repair Thread - Help & Guidance Requested-Please

    Hi All I have purchased a non-working SX690, same as the SX680 but different dial face (I think). A really nice looking unit, well built, no idea what they sound like, but i got it to try and fix up without going for the shotgun approach. I know the STK-0039 modules are considered a weak point...
    • PTL-Pioneer
    • Thread
    • 680 darlington darlington modules pioneer stk0039 sx690
    • Replies: 34
    • Forum: Pioneer Audio
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