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The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


    ST-70 Output Transformer

    rudes
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    rudes


    Posts : 63
    Join date : 2012-03-07
    • Post n°1

    ST-70 Output Transformer Empty ST-70 Output Transformer

    Post by rudes Tue Aug 06, 2024 7:44 am

    Has anyone ever had an output transformer smoke and is burning the paper coil covering under the bell cover on the secondary side? I have never seen this before.
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    rudes
    avatar
    rudes


    Posts : 63
    Join date : 2012-03-07
    • Post n°2

    ST-70 Output Transformer Empty Re: ST-70 Output Transformer

    Post by rudes Tue Aug 06, 2024 12:49 pm

    OK, I took it apart and see that the secondary coils are burned. Someone must and shorted the outputs for the transformer to be damaged in this way.
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      Current date/time is Thu Nov 21, 2024 1:25 pm