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#9
August 13th 04, 01:54 PM
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In (rec.radio.amateur.homebrew), Fred Bloggs wrote:
Paul Burridge wrote: On Fri, 13 Aug 2004 03:49:15 +0000 (UTC), (Ken Smith) wrote: Theres no problem getting 10mA to flow in a FET with Idss of 5mA. Just apply a positive bias to the gate. I've had as much as 2 or 3 A flow through a JFET this way. How many mS did the Fet last? I suppose you could always stand there with a can of arctic spray directed on it, but I doubt the customer would be impressed. ;-) Actually there have been systems produced that did run quite hot and were arranged with a liquid nitrogen drip onto the electronics to keep things cool. One model of Seymour Cray's computers ran with the logic immersed in a bath of chilled Fluorinert or some such, with a fairly hefty pump to keep the coolant recirculating through the chiller. -- Paul Raj Khangure mumbled: Every time someone calls Java a programming language a fairy dies? From frustration, if nothing else. DaZZa, in a.t-s.r |
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