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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: What to do with spent tubes? posted by technofossil on September 3, 2002 at 09:06:10:
Hi,Quite easy to do.
Overheat it - say 20-25% - with bias to cutoff (nill mA flowing through the tube).
Waith for a miute or four.
Apply quite some voltage to anode and screengrid, still with control grid in cutoff.
Remove voltage from controlgrid and let the anode get what it likes for a few seconds (say ten). Ideally it transfer as much current as possible without cooking.
Shut down the tube and if one is lucky it test all fine afterwards. Otherwise it will be really dead.
[Sort of giving the horse arsenic, it will appear young again or fall dead... How long it lasts is hard to tell (death lasts forever, but I think you know that :-) ]Anyone with a sturdy tube tester can try this out on some worn out tubes.
[Or anyone with an old horse and a icecold heart...]mvh /Pär
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Follow Ups
- Re: What to do with spent tubes? - Pär 09:57:33 09/03/02 (1)
- Re: What to do with spent tubes? - Pär 10:06:11 09/03/02 (0)
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