#1
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Picture Tube Brightener
Does anyone know how these things work? How do they make it brighter?
http://www.ebay.com/itm/Vintage-CBC-...item1c3bc66c61 |
#2
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These do not increase brightness of a good tube. They contain a transformer that raises the filament voltage. That increases the cathode temperature, temporarily increasing the electron emission of a worn tube with weak emission. They also make the cathodes wear out faster, so they are definitely a temporary fix for an old tube that is near the end of its life.
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#3
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Quote:
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#4
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I got a ton of them if anyone is interested.
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#5
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I limped along with a couple of sets for a few years with them. New CRT's sure make you realize what you were missing.
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