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  • Sovtek 5Y3GT?

    I'm building a 5e3 style amp, and bought some Sovtek 5Y3GT rectifiers. ubuyguitars.com has them 2 for $9.99. Now I'm reading online that they are not the same as old 5y3's. Should I not use one in a new amp? Can I mod the circuit to compensate for the difference?

    Thanks
    Vote like your future depends on it.

  • #2
    Originally posted by dmartn149 View Post
    I'm building a 5e3 style amp, and bought some Sovtek 5Y3GT rectifiers. ubuyguitars.com has them 2 for $9.99. Now I'm reading online that they are not the same as old 5y3's. Should I not use one in a new amp? Can I mod the circuit to compensate for the difference?

    Thanks
    When you build it put only the 5y3 in and check voltages to see where it's at.

    nosaj
    Binkie McFartnuggets‏:If we really wanted to know the meaning of life we would have fed Stephen Hawking shrooms a long time ago.

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    • #3
      Rumour has it they were simply "not-quite-GZ34s." Probably not a problem if you're using JJ 6V6s. But if it's for a new build, yeah, check what it puts out, then mod to your heart's content - at that price, dayum.

      Justin
      "Wow it's red! That doesn't look like the standard Marshall red. It's more like hooker lipstick/clown nose/poodle pecker red." - Chuck H. -
      "Of course that means playing **LOUD** , best but useless solution to modern sissy snowflake players." - J.M. Fahey -
      "All I ever managed to do with that amp was... kill small rodents within a 50 yard radius of my practice building." - Tone Meister -

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      • #4
        Thanks guys. They still have 282 of them in stock, still 2 for $9.99 too. I guess I'll build then check voltages, then come back here for more advice.
        Vote like your future depends on it.

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        • #5
          This is the same guy that I got those cheap VHT 18 watt amps from with the Australia PTs for cheap. Both the 18 watt and the 36 watt chassis use that tube and sound/work fine. He's 10 minutes from my house.

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          • #6
            And never forget this: these are only guitar amps, not precision lab gear. CLose is good enough.
            Education is what you're left with after you have forgotten what you have learned.

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            • #7
              Just because no one directly mentioned it, the voltage is usually higher with the Sovtek than with 'proper' 5Y3s.
              If any of your caps or tubes are running close to the rated max. voltage limits, you would not want to use this as a replacement.
              "Everything is better with a tube. I have a customer with an all-tube pacemaker. His heartbeat is steady, reassuring and dependable, not like a modern heartbeat. And if it goes wrong he can fix it himself. You can't do that with SMD." - Mick Bailey

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              • #8
                Thanks everyone. I know "close is good enough" I also know that higher voltages from my local power company is the norm nowadays.
                I got these 5y3 tubes, a chassis (aluminum $13) and a PT (Chinese $5) He had hand wired 5e3 circuit boards (probably Chinese) I think they were $20. I procrastinated and missed out on that one.
                Vote like your future depends on it.

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