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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: Cryo'd Tubes Measured!--Added comment posted by NEAR SOTA on November 25, 2002 at 11:26:28:
With transistors and hybrids, at least in the old days, kovar was used for the pins. Kovar is a metal that matches closely the glass seal expansion rate, but unfortunately, is magnetic and not high in conductivity.I would think tubes would use something at least close to the glass TCE, but don't know.
I'd worry about cooling the envelope too fast, and cracking the glass that way.
TTFN, John
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- Re: Cryo'd Tubes - John Escallier 10:58:58 11/26/02 (0)
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