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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


    VTA-120 new chassis hums with both inputs connected only

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    Boogeydog


    Posts : 2
    Join date : 2022-07-01

    VTA-120 new chassis hums with both inputs connected only Empty VTA-120 new chassis hums with both inputs connected only

    Post by Boogeydog Mon Jan 02, 2023 6:34 pm

    Good Day!
    I recently completed a new chassis VTA-120 and am looking for advice concerning a hum issue. First off my solid state amps are dead silent. When I connect the 120 in place of the solid state I get a 60hz hum out of both speakers. But wait. If I connect just one channel that channel is completely silent. When I connect both I get 60hz out of both channels. Cables are good and when I go back to solid state its fine. Would like to post some pics but can't seem to figure that out yet on this site. Any suggestions would be appreciated.

      Current date/time is Thu Feb 02, 2023 2:53 pm