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transistors

  1. R

    Realistic STA-90: small signal transistors to replace

    I have started a recap on my Realistic STA-90. I am compiling a list of caps but I want to replace potentially problematic transistors as well. The list from the manual is below. Which should I buy replacement for ? 2SC839 2SC710C 2SC710D 2SC536 2SA733 2SA733P 2SA733Q 2SA841 2SC1681 2SC1509...
  2. R

    Realistic STA-90: small signal transistors to replace

    I have started a recap on my Realistic STA-90. I am compiling a list of caps but I want to replace potentially problematic transistors as well. The list from the manual is below. Which should I buy replacement for ? 2SC839 2SC710C 2SC710D 2SC536 2SA733 2SA733P 2SA733Q 2SA841 2SC1681 2SC1509...
  3. R

    Reseating power transistors on SX-950

    I will soon be recapping(+transistors) the power amp on my SX-950. Since it looks like dismounting the heat sink will be required to access the back of this board, per advice found on this forum, I figured that this is an opportune time to remount the power transistors to the heat sink. I am...
    • rkgren1
    • Thread
    • compound heat sink heat transfer sx-950 transistors
    • Replies: 15
    • Forum: Pioneer Audio
  4. R

    Finally fixed my 771

    I bought a 771 from a flea market last year and enjoyed it for a while. It started popping and cracking on the left channel, and near the same time I stumbled upon a Realistic STA-90 that work fine. So I swapped it in and set the 771 aside. I recapped the 771 ~6 months back, but a hiss...
  5. macman007

    Marantz 1200 (Not B) Freshening Up...Consensus..

    Hello folks, getting ready to take my 1200 offline for some maintenance and tuning. Its been on the bench once for relay board caps and diodes back in '09, along with Deoxit and Faderlube, the normal stuff. Now on it's 46th birthday I'd like to do something special. Catrafter and I spoke and he...
    • macman007
    • Thread
    • 1200 capacitors diodes diy integrated amplifier marantz recap transistors upgrade
    • Replies: 2
    • Forum: Marantz Audio
  6. S

    Sansui 771 Transistor replacements.

    hello, i was wondering if anyone out there knows the replacement Transistors for the 771? i was online looking for the ones listed on the Schematic but it seems they dont make them anymore and its seems almost impossible to find good replacements? Please help!
    • Sansui 771
    • Thread
    • 771 replacements sansui sansui 771 sansui771 transistor replacement transistors
    • Replies: 2
    • Forum: Exclusively Sansui
  7. Maxxarcade

    Yamaha CR-820 Transistors

    I'm working on a CR-820 that has some hiss in the right channel. Seems to be coming from the tone control board. Are there any particular transistors I should consider for substitutes? Here are the originals: 2SC1917 2SC844 2SC1213 There is also a pair of the infamous 2SC458 in the idle...
  8. Allvey

    Sony TA-N7B Transistors

    Happy New Year! I’m doing a complete overhaul to a Sony TA-N7B not only to increase its life span but also to improve its sound however apart from the bipolar transistors in the output stage (2SA473/2SC1173 to D45H8/D44H8) I’m not certain what other transistor should be replaced and by what...
    • Allvey
    • Thread
    • sony ta-n7b ta-n7 ta-n7b transistors
    • Replies: 29
    • Forum: Solid State
  9. B

    Output Transistor replacement Crown Amp xs1200

    Hello all of you beautiful people, i have a crown xs1200, i bought it knowing it was blown up. Tore it all apart and quickly identified two failed Output transistors on channel two. Amp is two channels total. Each channel has 8 OP devices. 4 npn and 4 pnp. Removing the two duds (one shorted, one...
    • BDB
    • Thread
    • crown drivers output devices power amp transistors
    • Replies: 14
    • Forum: Solid State
  10. SU-8600 transistors

    SU-8600 transistors

    SU-8600 transistors
    • terra1
    • Media item
    • su-8600 transistors
    • Comments: 0
    • Category: Member Galleries
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