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Thread: Technics SL-PS740 opamp change? which ones

  1. #1
    Join Date: Nov 2011

    Location: Gold Coast - Australia

    Posts: 78
    I'm Sam.

    Default Technics SL-PS740 opamp change? which ones

    Hello,
    I am in the process of getting another Technics cd player for my collection.

    Its a bit different from the PG440A and appears to be more detailed with more opamps etc

    I have in stock:
    3 OPA1642
    1 LME49860
    NOS (about 5 or more years old0 LM4562 - 4 of them.

    I can get more of above if needed like OPA1642 or LME49860. The OPA1642 is FET, like the BA4560FT

    current opamps LM833N, BA4560FT

    The red plus are the opamps i think to replace, and muting removed and the filter cap near the rcas. Not sure about the classAA buffer amp, the ABC connector leads to the headphone which have their own pcb from the manual.


    Amps: Technics SU-V9, SU-V8 (black and silver), V8X, V4X ( 2 black, 1 silver) , G50 and SU-500
    Source:Technics SL-P990, P350, P477a,PG440a, Marantz CD40, NEC CD620 - TDA1541A, Philips CD753, Klein DAC, tuner and turntables Technics
    Speakers: Technics SB-6, Coral CX-5, ESM bookself (seas tweeters), Celestion Sl-6 (copper domes)

  2. #2
    Join Date: Nov 2011

    Location: Gold Coast - Australia

    Posts: 78
    I'm Sam.

    Default

    didnt get it, seller didnt want to post in the end was a good buy 30$au around 15 ish UK

    Amps: Technics SU-V9, SU-V8 (black and silver), V8X, V4X ( 2 black, 1 silver) , G50 and SU-500
    Source:Technics SL-P990, P350, P477a,PG440a, Marantz CD40, NEC CD620 - TDA1541A, Philips CD753, Klein DAC, tuner and turntables Technics
    Speakers: Technics SB-6, Coral CX-5, ESM bookself (seas tweeters), Celestion Sl-6 (copper domes)

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