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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: Tube burn in posted by Bambi B on October 5, 2004 at 07:24:16:
Very similar experience on the often-overlooked 12AX7-LPS. Improves with age and can be quiet, smooth and not bad at all in some circuits. I've never stuck with it, but I've bought them occasionally during dealer sales because I regard it as a pretty good everyday current-production tube. (The other Sovtek 12AX7s - the WA, etc. -- however, have been too noisy so far for me.)Possible durability caveat on the LPS: Twice, in idiot mistakes with my Marchand crossover, I've screwed up after testing news mods and powered on all nine 12AX7s before they've had any heater current. In both cases I had a mixed batch of tubes installed -- roughly half Amperex orange globe 12AX7s, and half of them brand-new Sovtek 12AX&LPS tubes. In both cases, the new Sovteks were instantly ruined but the Amperex were unfazed.
Best, John
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- Sovtek 12AX7LPS - BlackPlasticSound 11:02:54 10/05/04 (0)
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