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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


3 posters

    Tube options for MKIII

    snav
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    snav


    Posts : 20
    Join date : 2011-05-18
    • Post n°1

    Tube options for MKIII Empty Tube options for MKIII

    Post by snav Tue Jan 30, 2018 1:11 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.
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    Onlinepeterh
    peterh
    peterh


    Posts : 1869
    Join date : 2012-12-25
    Location : gothenburg, sweden
    • Post n°2

    Tube options for MKIII Empty Re: Tube options for MKIII

    Post by peterh Tue Jan 30, 2018 1:47 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.
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    snav
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    snav


    Posts : 20
    Join date : 2011-05-18
    • Post n°3

    Tube options for MKIII Empty Re: Tube options for MKIII

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

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


    Posts : 16
    Join date : 2010-09-05
    • Post n°4

    Tube options for MKIII Empty Re: Tube options for MKIII

    Post by MikeyV Tue Feb 20, 2018 3:16 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 3:16 pm; edited 1 time in total (Reason for editing : spelling)
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    • Post n°5

    Tube options for MKIII Empty Re: Tube options for MKIII

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