The Dynaco Tube Audio Forum

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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 products

    blown tubes


    Posts : 1831
    Join date : 2008-11-30

    blown tubes Empty blown tubes

    Post by tubes4hifi Thu Jun 08, 2023 7:51 pm

    over the past few years, it seems the #1 problem for most users (especially ST120 and M125 owners)
    is either blown output tubes and/or blown rectifier tubes (and in some cases, this causes a blown quad cap).
    The solution is actually quite simple but since I haven't seen anyone post this info (other than a couple posts I made 5 years ago)
    I've decided to order a simple kit on my ST70 Tubes4HiFi page.
    This will consist of two terminal strips and five fuses. One fuse for the rectifier tube and one fuse for each output tube.
    $10 for the kit plus $5 shipping.
    Two other new items are for monitoring bias, with either tip jacks to replace the front octal sockets, or blue meters.


    tubed1, Dale Stevens and New2Tubez like this post

      Current date/time is Thu Sep 28, 2023 11:47 pm