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Trace Elliot GP7SM 130 powerboard

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  • Trace Elliot GP7SM 130 powerboard

    Hello!
    I need the power board schematics for trace elliot GP7SM 130, the preamp is the same for GP7SM 150/300 but power board is not.
    The pcb is labeled as PB130SM / PB250SMX so i suppose it's the same for both but there is no way to find it on the net!
    Tanks!

  • #2
    I have many schematics, but not identified by board number.
    Please describe it: how many transistors, how many power ones, Fet/Bipolar , etc?
    "Series 6" is FET , 1 pair 2SK135/2SJ50 ; "Series 7" is Bipolar, 2 pairs TIP35/36 ; *but* in an intermediate model, when FET prices went through the roof, they *might* have matched a regular preamp with a Power Amp used in some other model.

    EDIT: I just found a 250/130 SM/SMX with 4 FETs, they suggest different optional models, maybe it's the one:
    Attached Files
    Juan Manuel Fahey

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    • #3
      Hello!
      The board has two mosfet, (buz900/buz905). Just two. I have seen the schematics you atached and it seems to be exactly the same for 130 model just avoiding two Fet (tr9 and tr7) i fact i've just looked now the pcb and have it have holes for two more fet, so it's that one!
      Thanks a lot!!!!

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