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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


    My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics......

    Doctor Hugocat
    Doctor Hugocat


    Posts : 92
    Join date : 2015-08-19
    Location : Los Angeles CA

    My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics...... Empty My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics......

    Post by Doctor Hugocat Sun Jan 01, 2017 2:16 am

    Hey Guys -

    Just to say a bif thanks to everyone who helped me with the rebuild of my ST-70, now with VTA board. I'm attaching a couple pics to this thread.

    When I go tit together, it wasn't working.....kind members pointed me toward the idea that it might be bad output tubes: and so it proved (just about the only things I hadn't replaced). With the new tubes it's very quiet at idle, and so sweet sounding! It certainly improved a lot over the first hour, or maybe that was just my ears fooling me?

    Anyways, thanks again and Happy New Year to all!! Very Happy

    My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics...... <a href=My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics...... St70%202_zpsnlwv3phs" />

    My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics...... <a href=My ST-70 VTA Restoration: it works, it sings. Thanks and Happy New Year! Oh and pics...... St70%202_zpsnlwv3phs" />

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