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Discussion in 'Electronic Design' started by GrandPaBobby, Dec 28, 2005.

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  1. GrandPaBobby

    GrandPaBobby Guest

    I recently purchased an old Topaz 1000 VA line conditioner transformer.
    Basically, these units are 1:1 isolation transformers with some
    secondary taps to allow compensation for fluctuations in primary line
    voltage or secondary load. There is some kind of voltage sensing
    circuit driving a number of triacs connected to the tap points.

    Mine seems stuck on a lower voltage tap connection. I have seen
    conceptual schematics for these things but would like to see a working
    schematic. I would be willing to pay for same. This thing weighs about
    60 lbs so shipping it out for repairs might be prohibitive.

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