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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


3 posters

    vta st 70 octal voltage chart

    avatar
    kost


    Posts : 35
    Join date : 2009-05-12
    Age : 60
    Location : athens

    vta st 70 octal voltage chart Empty vta st 70 octal voltage chart

    Post by kost Sat Aug 22, 2020 4:49 am

    Hi
    Does anyone have the vta st 70 octal voltage chart?
    I can see the voltage chart of the vta 120 but i think that it should be very helpfull if someone could post a chart for the vta st70
    warm regards
    kost
    peterh
    peterh


    Posts : 1823
    Join date : 2012-12-25
    Location : gothenburg, sweden

    vta st 70 octal voltage chart Empty Re: vta st 70 octal voltage chart

    Post by peterh Sat Aug 22, 2020 2:47 pm

    kost wrote:Hi
    Does anyone have the vta st 70 octal voltage chart?
    I can see the voltage chart of the vta 120 but i think that it should be very helpfull if someone could post a chart for the vta st70
    warm regards
    kost

    The essential voltages are in my schematics,
    Plate voltages of all triodes, cathode voltages of all tubes and
    a few voltages of the B+ chain.

    Is there a specific voltage that concerns you ?
    avatar
    alanhuth


    Posts : 40
    Join date : 2020-07-06
    Location : Chicago

    vta st 70 octal voltage chart Empty Re: vta st 70 octal voltage chart

    Post by alanhuth Sat Aug 22, 2020 11:16 pm

    PETERH,
    I did a search for “st-120 octal voltage chart” and various permutations, but I couldn’t find anything. Pardon the tedium, but would you mind pointing to it?

    Thanks,
    peterh
    peterh


    Posts : 1823
    Join date : 2012-12-25
    Location : gothenburg, sweden

    vta st 70 octal voltage chart Empty Re: vta st 70 octal voltage chart

    Post by peterh Sun Aug 23, 2020 1:21 am

    alanhuth wrote:PETERH,
    I did a search for “st-120 octal voltage chart” and various permutations, but I couldn’t find anything.  Pardon the tedium, but would you mind pointing to it?

    Thanks,
    A number of voltage indications are written in the schematics for the vta70.

    If you don't have schematics then contact Bob at tubes4hifi and you will get help.
    avatar
    alanhuth


    Posts : 40
    Join date : 2020-07-06
    Location : Chicago

    vta st 70 octal voltage chart Empty Re: vta st 70 octal voltage chart

    Post by alanhuth Sun Aug 23, 2020 1:20 pm

    Sorry, that should have been addressed to KOST

    KOST, where did you see the VTA ST-120 voltage chart? I have the 120 schematics, but it sounds like you have a separate chart with perhaps more voltages in it?

    Thanks

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