In alt.engineering.electrical Laurence Payne lpayne1NOSPAM@dsldotpipexdotcom wrote:
| On 26 Dec 2006 11:45:26 GMT, wrote:
|
|So what about their design makes it a problem for cooling to go from active
|to passive when the heating goes from active to none? It would seem to me
|that a slower cooling process would be less stressful. But apparently some
|aspect of it is a problem where temperature presumably will rise somewhere
|that active cooling would have prevented (e.g. cool parts adjacent to hot
|parts). Someone didn't consider thermal in the mechanical design.
|
| Or the punters demanded it small and cheap. Lots of equipment
| requires a shut-down cycle. You're used to it with your computer,
| your ink-jet printer. If they reckon the projector bulb will last
| longer with controlled cooling, why should we take an attitude?

My computer has survived dozens of sudden power outages with no problem
whatsoever. The printer seems to still be working fine, too (but I'm not
stressing it with a dozen reams a day).

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| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
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