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#1
09-26-2003, 01:09 PM
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Found Philco Golden Grid at garage sale...anybody here interested.
While at a garage sale today, I came across a Philco Golden Grid B/W tv in very good condition cosmentically. The owner had powered it up
 and said she had gotten sound but just a white line across the screen. This appears to be a mid to late fifties model with nice cabinet (looks to be veneer) and grill cloth (with brass criss-crossing it) underneath the screen. All the knobs present and lettering good. She was asking $75 for itI know nothing  about these, but if anybody is interested in it I will investigate further and/or get it for them if it's still available. PM or e-mail me.JonTee 
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#2
10-07-2003, 05:56 PM
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Re: Found Philco golden grid at garage sale . . .
JonTee,
The white line across the screen indicates there is no vertical sweep. For starters I would replace the vertical oscillator/output tube. If this doesn't restore the sweep, replace the vertical output transformer. Finally, if neither of these dodges gets you your sweep back, check for an open vertical deflection winding in the deflection yoke. Note: I listed the possible causes for the loss of vertical sweep in order of probability. I'd replace the tube(s) first, as eighty percent of all TV troubles are caused by weak or outright dead tubes. A final note: Do not leave the TV on if all you are getting is a bright vertical line. The reason is that, with no sweep, you are running a very real risk of burning the phosphors on the CRT screen. If you must leave the set on for any reason, turn the brightness all the way down to minimum. Hope this helps you get that set working again. The Philco golden grid sets were made with very sensitive tuners (good for use in fringe areas), using special tubes with (you guessed it) gold-plated grids. Kind regards,
__________________
Jeff, WB8NHV Collecting, restoring and enjoying vintage Zenith radios since 2002 Zenith. Gone, but not forgotten.
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#3
10-08-2003, 06:09 AM
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I have to differ with one of these points...there are a lot of other more probable causes of vertical sweep loss other than the output transformer or yoke. Yes, the tube could be bad, but the biggest problem in these old sets is bad paper and electrolytic capacitors. I have never seen a bad vertical output transformer in a TV. Before replacing such a part as a transformer, it needs to be checked with an ohmmeter.
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