Time for new Guitar Tubes?

Discussion in 'Guitars' started by Emmet, Mar 31, 2006.

  1. Emmet

    Emmet Guest

    Hey Hey

    So I turn up my Marshall JCM 2000 TSL 60 Watt stack and as the master volume approaches face-peeling-off volume it seems to struggle for power and the tone goes all dull and shittay....Time for new tubes? It's fine at moderate volume, just as you push it harder it goes softer and weaker. Any tube recomendations? 6 years old, used-not too often.


  2. moonbaby

    moonbaby Mmmmmm Well-Known Member

    Feb 23, 2005
    Gee, for a 6-year-old, you type pretty good :D
    Give yourself a few more years and you'll be used plenty!
    Seriously, in a word, YES, you are probably due for a set of output tubes.
    Find yourself a decent amp tech in your area and get them replaced and BIASED. This will ensure a long, healthy life for not only the tubes, but the output transformer, too. Your tech will probably recommend whatever he can sell you. If the amp has EL34s, I would go with the JJ (formerly Tesla) brand. Beautiful cobalt crystal glass, they hold their vacuum very well. Otherwise, Groove Tubes offer a range of "matched" tubes that will
    yield "soft" to "hard" response, depending on the grade you select.
  3. CoyoteTrax

    CoyoteTrax Well-Known Member

    May 25, 2005
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    I'll 2nd the Tesla/JJ's recommendation. Amazing tubes and an incredible value. The Ei's out of Yugoslavia are very kewl too. They have excellent output and sound alot like Mullards and of course NOS Mullards are fantastic (and my fave's lately). JAN-Philips are very exciting NOS tubes as well. They have a very bright and vivid color to them that has amazing presence.
  4. Tommy P.

    Tommy P. Well-Known Member

    Jan 10, 2002
    Yep, what they said....pre-amp and power amp tubes, a matched phase invertor, bias, ect ect by a good tech. And if someone tells you there's no real difference in tubes run out of the shop :) .

    And don't forget to have the filter capacitors checked. And check for loose ground points. Those two items can rob punch and tone, and get overlooked by do-it-yourselfers and pro's alike. 8)
  5. eddies880

    eddies880 Guest

    A little late on the response---but through the yrs---Ive done alot of trial and error with trying out tubes for my Marshall,and I must say that I always lean towards Groove Tubes.

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