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I tried using a fan on my barberpole. The noise drove me nuts, so I got rid of it.
Putting on my contrarian hat, I'm not a big fan of retrofitting old TVs with things they never had. Somehow, zillions of Predictas survived long, hard service in homes and motels. Yeah, some had heat problems, but many did not. If you only watch yours for an hour or two per month, you may have to wait 200 years before seeing a heat-related failure. If you vist the ETF museum, you'll see TVs more valuable than any Predicta playing for hours on end without cooling fans or special soft-start circuitry. The type of fan or exact placement doesn't seem that critical. What you want is some air movement, but not a hurricane. Setting any sort of little fan anywhere behind the TV may work as well as anything. Forcing thousands of cubic feet of air through a chassis also brings in dirt. Think of the computer chassis you have seen, where every square inch of the interior is clogged solid with dust and hair, which then causes acute overheating. That ginormous dust bunny didn't grow legs and walk in. It was created by the fan, one particle at a time. Just my $0.02. Phil Nelson |
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