Author Topic: Where to get tubes cryo'ed?  (Read 2329 times)

jrebman

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Where to get tubes cryo'ed?
« on: October 23, 2007, 12:12:16 PM »
Anybody know a reputable cryo treatment facility that isn't too expensive and will do batches of tubes (preferred).  I want to do one of my Mullard rectifiers and a matched quad of Gold Lion KT-88 reissues, plus probably a few more.

Thanks,

Jim

Offline richidoo

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Re: Where to get tubes cryo'ed?
« Reply #1 on: October 23, 2007, 02:57:11 PM »
Does John at Black Sands still do cryo?

https://www.tubeworld.com/kuhltube.htm#
http://www.tubedepot.com/bsctfaq.html

I can recommend buying tubedepot cryo tubes, but can't predict safety of your tubes. I never used tubeworld, but they specifically describe the slow cool and warm process, 8 hours each, with 36 hour soak!
Rich