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Chauvin Arnoux power supply cda 9230

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    Chauvin Arnoux power supply cda 9230

    G'day chaps and chapesses
    I have an ancient, really really ancient, dual bench power supply 0-30v 0-2.5a. All analogue stuff, not a digit in sight.

    One side is fine. the other winds up the voltage but doesn't drop down to less than 10v. This side had a fried 2n2055 and everything else seems to check out. The caps and all the other bits seem ok. Shouldn't be a major headache to sort, but it would be a bit easier with a diagram. I know it's a long shot, but anyone got a circuit? The manufactures in France can't help. This is probably well over 20 years old, and they certainly don't make them like this any more. Built like a tank and I am reluctant to bin it.
    TIA

    #2
    Re: Chauvin Arnoux power supply cda 9230

    If you had the 2N3055 it likely also took out whatever smaller transistor is driving it. Replace that also and you should be good.
    Originally posted by PeteS in CA
    Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
    A working TV? How boring!

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