GZ34 in a Weber Tweed deluxe

Discussion in 'Amp Central Station' started by Nick Fanis, Jul 2, 2020.

  1. Nick Fanis

    Nick Fanis Poster Extraordinaire Ad Free Member

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    I have an old (about 15 years) tweed deluxe (Wever kit) ,it has a large transformer that can also accept 6L6 .
    I am currently running 6V6s and a 5Y3 rectifier but yesterday the 5Y3 died and in pinch I swaped it for a GZ34.
    The amp sounds much cleaner ,tighter and "musical" to my ears and I want to keep it this way. It is also less noisy.
    Is there any way the GZ34 will cause some damage to the amp,tranny and the ,very expensive,RCA blackplates I am using at the moment?
     
    Last edited: Jul 2, 2020
  2. Kevin Wolfe

    Kevin Wolfe Tele-Meister

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    I would advise checking the bias. Specifically the plate dissipation. The GZ34 will supply significantly higher B+ voltage. If it’s not red plating, and sounds good, you’re probably safe. Personally, I like to know. Especially with those precious power tubes.
     
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  3. dan40

    dan40 Tele-Afflicted

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    Yep...definitely check the bias. With the higher plate voltage brought about from using the GZ34 the tubes are likely running a bit hotter.
     
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