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Thread: Identify Tube Amp?

  1. #1
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    Default Identify Tube Amp?

    Okay, I know at least a couple of you may have some older home tube amp background. A older tech who has been out of the business for a number of years, brought to us a Moog Opus 3 and a stereo tube amp that I can't identify the brand. There is no model number, just a logo which looks like it would be a "T" and an "L."

    Any ideas or maybe where to go to do a bit more research? Haven't had any luck yet doing a Google search.

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    Henry Grimmius
    Fresno, CA

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    Hi Henry,

    Might that logo represent two "t"s? TT instead of a TL

    TT amps?

  3. #3
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    The only companies I'm aware of that A) make tube gear and B) use the initials TL are:

    Tony Larking Audio (TLA) - makers of recording gear, based in UK, and
    Vacuum Tube Logic (VTL) - makers of audiophile amplification

    Both are legit companies and it's hard to imagine they would manufacture anything without other identifying characteristics, such as maker name, serial number, model number, etc.
    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

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    Looks like a custom / hobbyist / prototype kind of piece.
    Todd Robbins
    TX3 Productions, Inc.
    www.toddro.com

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    Default

    also looks to be rather 1970s-ish, and designed for home audio. Maybe someone at audiogon dot com can help.
    Bill Park
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  6. #6
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    I have seen that logo I think, but can't tell you what it is.
    Doug Williams
    Electromagnetic Radiation Recorders

  7. #7
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    I don't think it's VTL. I've seen their logo since the 1990's and it was a variation of what it is now. But, David Manley was doing stuff in the 1970's in England. I thought of TL Audio but their logo doesn't even look close to it.

    There are a lot of small operator home hifi builders of which this may have come from. Inside the unit, there was what appears to be a serial number written on the chasis in Sharpie. It's all point-to-point wiring. No auto biasing on the tubes. Tubes are interesting--EL84 and 6GU7. It hasn't been powered up in at least 15 years so I'll have to variac the unit to help reform the capacitors. I'm assuming it is a home audio piece since it has RCA inputs.

    Before heading over to Audiogon, I had gone through a bunch of old bookmarks I had saved over the years regarding home audio. Most are no longer valid. Not much luck in entering in the right search info at Google. I'm also hoping to jog the memory of the guy that owns it but doesn't use it anymore.
    Henry Grimmius
    Fresno, CA

  8. #8
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    Quote Originally Posted by Todd Robbins View Post
    Looks like a custom / hobbyist / prototype kind of piece.
    Could be, but someone who knew what they were doing put together that logo design.

    (unrelated)
    Found this while hunting around the internet, http://m.matrixsynth.com/2010/08/pol...nner-qp-1.html, pretty wild looking. What engineer doesn't wanna play with a joystick
    Last edited by Mike Derrick; 01-15-2012 at 01:39 AM.

  9. #9
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    I agree regarding the logo. It looks somewhat familiar. Not just a one off-type. The serial number is interesting. It's 00490006. Not sure I can figure anything out as far as age or quantity goes. Gotta find me a Variac and get these caps reformed so I can fire it up and see what I've got.
    Henry Grimmius
    Fresno, CA

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