The Dynaco Tube Audio Forum

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


    PAS 3 Phono board question

    Share

    willemakeit

    Posts : 1
    Join date : 2010-05-16

    PAS 3 Phono board question

    Post by willemakeit on Sun May 16, 2010 10:48 pm

    I am just going to use the line part of my PAS3 and am wondering if I can leave the tubes out of the Phono board?

    Bob Latino
    Admin

    Posts : 2413
    Join date : 2008-11-26
    Location : Massachusetts

    Re: PAS 3 Phono board question

    Post by Bob Latino on Sun May 16, 2010 11:09 pm

    willemakeit wrote:I am just going to use the line part of my PAS3 and am wondering if I can leave the tubes out of the Phono board?

    Hi William,

    Yes - you can leave the two 12AX7's out on the phono board but it will probably raise the voltages on the other two 12AX7 tubes on the line stage board. Check the PAS-3 manual and check the voltages on the line stage 12AX7's. If they are only slightly higher than normal (5% - 10%) you will probably be OK ...

    Bob

      Current date/time is Thu Dec 08, 2016 5:59 pm