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 products and all products

    multiple preamp outputs



    Posts : 18
    Join date : 2012-03-26

    multiple preamp outputs

    Post by rockinrob86 on Thu May 24, 2012 10:56 am

    I built an SP8

    In some of the pictures, I see multiple outputs. There are resistors connecting the hot contacts on the RCAs

    What values are these resistors, and why are they there?

    I am assuming they prevent some type of loss that would occur from just wiring the outputs in parallel, correct?


    Posts : 1268
    Join date : 2008-11-30

    Re: multiple preamp outputs

    Post by tubes4hifi on Fri May 25, 2012 10:45 am

    I usually use 1K resistors, the value isn't critical, it just provides a little bit of isolation between the two outputs,
    and isn't absolutely necessary.


    Posts : 94
    Join date : 2012-02-18
    Location : Toronto, Canada

    Re: multiple preamp outputs

    Post by plexus on Fri May 25, 2012 12:41 pm

    and more parts in the signal chain. Sad

    Sponsored content

    Re: multiple preamp outputs

    Post by Sponsored content Today at 11:34 pm

      Current date/time is Fri Oct 21, 2016 11:34 pm