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Thread: Leslie 720 amplifier module, anyone have one of these lying about?

  1. #1
    ppp Pianississmo tpappano's Avatar
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    Leslie 720 amplifier module, anyone have one of these lying about?

    From the Great Leslie Fire of 2018:

    20180809_181449.jpg

    Last item I need to bring the last of the 720 and 540 speakers back to their full potential. I don't think this one is repairable 8)

    I think these modules are used in several different Leslie models.

    Thanks!

  2. #2
    mp Mezzo-Piano Jyvoipabo's Avatar
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    1 members found this post helpful.
    Oops !
    Nice pic for the Horror museum of Organforum.

    Some resistor and capacitors disappeared in smoke.
    But the transformer is still there and may be intact under the soot.
    I think it is repairable if there is not other issue.

    But, you can replace it with a chinese LM3886T amp based module. (The same are mounted on the JBL EON Power 10)

    Or even throw everything and mount this one.
    https://www.xkitz.com/products/bi-am...ssover-xamp-m4

    JP

  3. #3
    ppp Pianississmo tpappano's Avatar
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    Yep, this is what happened when the amp developed a 'fault' (from lightning) and the *30 amp* fuse someone replaced the 2.5 amp with just let all kinds of electrons have a real party 8) The transformer is pretty much just a blob of ash and the pcb underneath is carbonized clear through.

    That little bi-amp module looks real cute and would run fine with the existing Leslie power supply, but on the other hand I have an extra Crown CT-200 that would really do the job. Decisions, decisions...

  4. #4
    ff Fortissimo tobeycat2007's Avatar
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    The 720 and 705 amps are same and the 710 possibly very similar.

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