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


    Tube options for MKIII

    Share

    snav

    Posts : 20
    Join date : 2011-05-18

    Tube options for MKIII

    Post by snav on Tue Jan 30, 2018 2:11 pm

    How much difference is there between different tubes that would work in the Mark-III monoblock?

    Was reading that tubes are being blocked-confiscated when shipping to/from abroad and USPS won't carry due to some tubes having mercury.  Has anyone here had issues with this?   I had no problems shipping tubes before but that was a few years back. Plus I triple wrapped tubes in cut cardboard frames.
    avatar
    peterh

    Posts : 942
    Join date : 2012-12-25
    Location : gothenburg, sweden

    Re: Tube options for MKIII

    Post by peterh on Tue Jan 30, 2018 2:47 pm

    snav wrote:How much difference is there between different tubes that would work in the Mark-III monoblock?

    Was reading that tubes are being blocked-confiscated when shipping to/from abroad and USPS won't carry due to some tubes having mercury.  Has anyone here had issues with this?   I had no problems shipping tubes before but that was a few years back. Plus I triple wrapped tubes in cut cardboard frames.
    None of the tubes used in dynaco amps contain mercury.
    Mercury was used in older technology rectifiers .
    http://www.electricstuff.co.uk/mercarc.html shows some examples.

    snav

    Posts : 20
    Join date : 2011-05-18

    Re: Tube options for MKIII

    Post by snav on Tue Jan 30, 2018 3:30 pm

    Yes, but postal employees aren't that informed, so they ban everything.

    MikeyV

    Posts : 16
    Join date : 2010-09-05

    Re: Tube options for MKIII

    Post by MikeyV on Tue Feb 20, 2018 4:16 pm

    Any tube of the correct type will work.  Order from a reputable seller and you should be good.
    I slapped some JJs in mine and everything works great.


    Last edited by MikeyV on Tue Feb 20, 2018 4:16 pm; edited 1 time in total (Reason for editing : spelling)

    Sponsored content

    Re: Tube options for MKIII

    Post by Sponsored content


      Current date/time is Tue May 22, 2018 7:07 am