*Rectifier Tube Question*

Discussion in 'Amp Central Station' started by MerleJam, Mar 25, 2020 at 8:15 PM.

  1. MerleJam

    MerleJam Tele-Meister

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    Was looking at the tubes that came with my used Bugera BC30 and the rectifier tube is a Magnavox 5Y3GT and the amp calls for a 5AR4. Is this a problem? Thanks. Sorry for my ignorance on the topic, as I’m sure this is common knowledge.
     
  2. corliss1

    corliss1 Friend of Leo's Platinum Supporter

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    Yup. Amp will behave different, and it's possible there is too much voltage/filtering for a 5y3 there.
     
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  3. MerleJam

    MerleJam Tele-Meister

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    Hmm. Not good. I reckon it’s time to order a new tube lol. It has the option to run 1 5ar4 or 2 5v4G. Is there major tonal differences in those setups?
     
  4. Wally

    Wally Telefied Ad Free Member

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    The 5V4 drops more voltage than does the GZ34/5AR4. That rebiases every tube in the circuit, and the Sonics are affected.
     
  5. BobbyZ

    BobbyZ Doctor of Teleocity

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    5y3 in an amp with four el84s is little over taxed, probably a lot over taxed.
    That amp has a half power switch right? If that cuts two el84s off then a 5y3 would be more in its realm. That could be what the last guy was thinking, plus it'd drop some voltage and sag more than a GZ34.
    But I don't know if the half power switch cuts two power tubes out, some don't.
     
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