Thread: picture tubes
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Old 12-11-2007, 04:49 PM
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Eric H Eric H is offline
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Quote:
Originally Posted by nasadowsk View Post
Is 8BP4 the one that the little 50's RCA portable uses? if so, I could use a good one (mine has virtually NO picture)

Did you test your tube? The ion trap is very critical on these, even leaving the metal shield off will kill the picture.
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