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

    Second pair of caps for SP-14



    Posts : 18
    Join date : 2012-07-11

    Second pair of caps for SP-14

    Post by ixe13 on Wed Mar 13, 2013 9:44 pm

    Hi all,

    This is a question for Roy, but I thought to post it here since it might be interesting and/or helpfull to everyone.

    I ordered Roy's SP-14 preamp, and there is a second pair of coupling caps that can be add to the circuit.

    I already own a pair of .22mF Russian military surplus K40Y PIO capacitors. Can I use them in that circuit instead of the .33mF normaly used?

    I suppose I could try them and see (ear rather), but before, I'd like to know if there is any danger to the circuit itself.

    They're huge though, its the 1000 volts version.




    Posts : 1268
    Join date : 2008-11-30

    Re: Second pair of caps for SP-14

    Post by tubes4hifi on Thu Mar 14, 2013 11:43 am

    yes, you can use those, or any others that you want to try.
    then you can compare the sound because you've got two separate outputs!
    You'll need an amp with two inputs, or a switch.

      Current date/time is Thu Oct 27, 2016 2:54 am