The Dynaco Tube Audio Forum

Would you like to react to this message? Create an account in a few clicks or log in to continue.
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


2 posters

    Line voltage

    wildiowa
    avatar
    wildiowa


    Posts : 237
    Join date : 2012-03-19
    • Post n°1

    ac line voltage - Line voltage Empty Line voltage

    Post by wildiowa Wed Sep 26, 2012 10:23 am

    Saw a couple of recent posts here re: line voltage so did a reading on mine again...wall outlet is now 124.5 VAC pretty consistently. This summer it was about 121 to 122. Given that number what would be a decent compromise on setting the bias on a stock Mark III (KT88's) and my ST70? Right now I am at about 1.45 to 1.47 to compensate for the higher line voltage but I have nothing to base that on. Funny that most if not all the old tube stuff I have seen clearly says 117 VAC, todays line is much higher. Thx.
    • Back to top
    GP49
    avatar
    GP49


    Posts : 792
    Join date : 2009-04-30
    Location : East of the sun and west of the moon
    • Post n°2

    ac line voltage - Line voltage Empty Re: Line voltage

    Post by GP49 Wed Sep 26, 2012 11:10 am

    ANSI standard C84.1: 120volts, plus or minus six volts.

    110, 115 and 117 are all previous standards, now obsolete.
    • Back to top
      Current date/time is Mon Nov 25, 2024 11:37 pm