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Old 05-18-2014, 05:57 PM
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compucat compucat is offline
1949 Motorola 9VT1
 
Join Date: Apr 2005
Location: Suffolk, VA
Posts: 970
Quote:
Originally Posted by Magnavox300 View Post
Picture seems better the longer I run the set, but I can't brighten it.

The picture will zoom in very large, then disappear and go dark if I try to turn up the contrast or brightness past their halfway points...

Any thoughts??
That is called blooming. The first thing to check is the high voltage rectifier. Substitution of the tube is the best way to deal with it. That is a nice set by the way.
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