The Dynaco Tube Audio Forum

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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

    Tough Mudder Mullard

    LeGrace
    LeGrace


    Posts : 388
    Join date : 2016-08-07
    Location : Ontario, Canada

    Tough Mudder Mullard Empty Tough Mudder Mullard

    Post by LeGrace Thu Jun 01, 2017 6:15 pm

    I have a GZ37 Mullard that got red plated due to an issue with my amp. Causing it to light up like the 4th of July. NOS tube circa 60's or so. Figured it was toast but a couple weeks on now of daily use surprisingly it is still working perfectly. Definitely worth the $$'s. Anyone else with similar experience illustrating how tough these tubes are?
    Peter W.
    Peter W.


    Posts : 1351
    Join date : 2016-08-07
    Location : Melrose Park, PA

    Tough Mudder Mullard Empty Re: Tough Mudder Mullard

    Post by Peter W. Thu Jun 01, 2017 10:20 pm

    LeGrace wrote:I have a GZ37 Mullard that got red plated due to an issue with my amp. Causing it to light up like the 4th of July. NOS tube circa 60's or so. Figured it was toast but a couple weeks on now of daily use surprisingly it is still working perfectly. Definitely worth the $$'s. Anyone else with similar experience illustrating how tough these tubes are?

    Although this horse is quite thoroughly dead, flayed, flensed, dried and jerked: They just don't make them like they used to!

    I have, due to my own silliness and/or other reasons, red-plated any number of pentodes and other tubes entirely without consequence (to the tube) over time. But, then, they were all pre-1980 stuff.
    deepee99
    deepee99


    Posts : 2244
    Join date : 2012-05-23
    Location : Wallace, Idaho

    Tough Mudder Mullard Empty Re: Tough Mudder Mullard

    Post by deepee99 Fri Jun 02, 2017 10:37 am

    I have three of those old Mullards with <10 hours on them; a pair of GZ-33s and one GZ-37. They stand about as tall as the Eiffel Tower and are bullet-proof.
    They are for sale. Check the For Sale/Wanted sticky on page 1 of the Forum.

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