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Please suggest KT88 tubes

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  • #1

    Please suggest KT88 tubes

    I'm looking for a quad of KT88s. Suggestions wanted!!
    In this forum everyone is entitled to my opinion.
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  • #2
    KT88 for what amp or at least what B+ range? I've had good luck lately with JJ, in amps up to 550V. Not so good luck with EH, their screen grids packed it in fast, and I mean in hours not months or years of use. I put a China-made one to good use in a THD Univalve which drew an unbelievable 100 milliamps at 400V but works & sounds good.

    For hi voltage amps like SVT say 700V, I don't know what to say. You might contact Jim McShane in Chicago. He sells lots of tubes to the hi fi crowd (who consider him to be a saint) but he'll deal with guitar amp techs too. I've heard the KT88's sold currently as "Gold Lion" are extra tough, but plan on paying $55-60 each, last I checked. Might be more by now. These are marketed through New Sensor as are Sovtek, ElectroHarmonix, Tung-Sol and a few other brands, all currently produced in Russia. None of my muso friends want to pay the extra freight so I have no first-hand knowledge on the GL's. FWIW Jim is NOT a fan of JJ's except perhaps for their EL84.

    There's something nice & plush about KT88's in guitar amps.
    This isn't the future I signed up for.

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    • #3
      Interesting, thanks!!
      In this forum everyone is entitled to my opinion.

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      • #4
        I had JJs in my Marshalls. Loved them !

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        • #5
          The friend asking me for advice... I don't think he was particularly impressed by my info on KT88s. He vent for 6550 instead. Lol
          In this forum everyone is entitled to my opinion.

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          • #6
            Well they are a little less expensive. Sure wish he had tried KT88s though. I think they have a bigger sound ,BUT...

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            • #7
              Originally posted by gtrplayr1976 View Post
              Well they are a little less expensive. Sure wish he had tried KT88s though. I think they have a bigger sound ,BUT...
              He had KT88s in this particular amplifier. I guess he felt a little crazy and just vent for it. :-)
              In this forum everyone is entitled to my opinion.

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              • #8
                He asked me to swap these tubes and adjust the bias. And well, guess what, a quad of 6550 sitting there waiting. After a power stage fuse and the tubes were swapped it sounded good. He claimed to be in heaven.
                In this forum everyone is entitled to my opinion.

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                • #9
                  Originally posted by überfuzz View Post
                  He asked me to swap these tubes and adjust the bias. And well, guess what, a quad of 6550 sitting there waiting. After a power stage fuse and the tubes were swapped it sounded good. He claimed to be in heaven.
                  What brand of 6550?
                  "If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
                  Terry

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