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Re: Cryogenics for tubes...etc

I have some cryo'ed GE JAN 5751s done by Pearl. They're also selected for a number of other parameters like gm, current, and noise. I use 5751 in the voltage amplification position of my amplifiers. I don't think the Pearl cryo'ed 5751s sound better than a non-cryo'ed GE JAN 5751, and any GE JAN, cryo'ed or otherwise, doesn't sound as good as a plain old GE black plate 5751, or Sylvania 3 mica black or gray plate, etc., etc. Basically cryogenic treatment didn't transform an okay sounding tube into a great sounding tube to my ears in the systems I've tried them in.

- SJ


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  • Re: Cryogenics for tubes...etc - tvr2500m 07/26/0517:01:36 07/26/05 (0)


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