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replacement transistors

  1. tutor_turtle

    250TX with blown outputs

    Got a nice 250TX to fix for a friend. Right channel has both outputs shorted E-C. Otherwise it looks good, nice case, clean inside, decent FM reception, all the functions work. I read in another post here that a decent replacement output for PNP: KSA1220A-Y, NPN: KSC2690A-Y. That said, there...
    • tutor_turtle
    • Thread
    • 250tx parts list replacement transistors
    • Replies: 0
    • Forum: Fisher
  2. joltman

    Proper Replacement Transistors MPSW06, MPSW56

    I have got a JBL PB 12 subwoofer that I purchased in 2001. In about 2019, it decided to stop working. Long story for another thread, I have tested the NPN/PNP (Q2 and Q3) transistors in the power supply with an Peak Atlas DCA55 and they both test fine, however, given the scorch marks on the...
    • joltman
    • Thread
    • help needed replacement transistors
    • Replies: 9
    • Forum: DIY
  3. lopezluna

    Kenwood ka-9100 anyone has a list of currently available transistors to use as replacements

    Hi everyone. I have a Kenwood ka-9100 amplifier that I would like to restore. However after reading the restoration threads on this forum and noticing that many of the transistors used as replacements are obsolete and NLA. I am wondering if anyone has recently made a list of replacement...
    • lopezluna
    • Thread
    • currently available transistors for ka-9100 ka-9100 replacement transistors ka-9100 restoration ka-9100 transistors kenwood kenwood ka-9100 kenwood ka-9100 obsolete transistors replacement transistors transistors
    • Replies: 10
    • Forum: Kenwood-Trio/Kensonic-Accuphase
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