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#1
02-22-2016, 11:45 AM
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Got this Predicta TV ... now what ...
Got this Philco Predicta (Holiday I think TV.
Missing the inner knob on the front - it is Tone Conrol? What does it look like so I know what to find? On the side I'm missing what might be its antenna I guess. Any source for the antenna? It same with some brochures and documents on Predictas. Cleaned up all the white fungus like stuff with Window Cleaner and Novus 2. It has two big vertical scratches on the front screen. Looks remarkably better after cleaning up. Cabinet is in really nice condition. A stand came with it - is it one used with this Predicta in its hey day? Measured the diagonal of the Screen and its 21" to the inner mask and 23" edge to edge. Took the back cover off the CRT but could not see anything that identifies what the CRT is. The plastic back on the CRT is mint. Not sure if this one is one I'm going to Trade, use as a static display or attempt a full restoration. I've never even touched a Predicta before this one but have restored some earlier tube TVs. I do recall from reading posts in the past that there are a number of tips and helpful hints that one should be aware of before proceeding with a restoration. I love photos of other folks projects so here are some of this Predicta:
__________________
CW 1950 Zenith Porthole - "Lincoln" 
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#2
02-22-2016, 12:07 PM
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First thing you need to do is check the CRT, if it's good then the set is worth doing a restore on. All the little things can be found.
Beware that the CRT may be one with a low voltage heater so be careful testing it. The brass legs aren't really a stand, they're part of the set.
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#3
02-22-2016, 12:52 PM
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The same chassis was used in the Predicta Pedestal (aka "barberpole") sets. This article has restoration notes that may be helpful:
http://antiqueradio.org/philc12.htm As you'll read there, the big PC board is a pain to deal with. Predictas are prone to certain other problems, such as bad sockets, but other TVs have their weak points, too (didn't you replace a flyback on a Zenith porthole?). They do perform reasonably well when all is done . . . the challenge is getting there. Here's a second Predicta article that's less directly relevant, but you might want to skim it, too: http://antiqueradio.org/PhilcoH3412L...Television.htm I tried to be a little more thorough the second time around. As noted in that article, it's useful to get the original Philco factory service manual, in addition to the Sams Photofact. The Philco manual has part numbers that match the numbers on the board, and some info not available in Sams. If you know what to expect before you start, restoring a Predicta could be as fun as any other project. Two is enough for me, though. You'll find more Predicta info in this forum's archives from bandersen , who has done multiple restorations. He may also have stuff on YouTube (I can't say for sure, since I'm allergic to YouTube). Phil Nelson Phil's Old Radios http://antiqueradio.org/index.html
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#6
02-22-2016, 03:20 PM
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Believe this is the original stand for the Predicta tabletop TV.
-Steve D.
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Please visit my CT-100, CTC-5, vintage color tv site: http://www.wtv-zone.com/Stevetek/
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#10
02-22-2016, 04:40 PM
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21EAP4. The CRT and other tubes are listed in the article that I referenced earlier. My earlier post included a link to the Sams manual, as well.
Phil Nelson
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#12
02-22-2016, 05:26 PM
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Oh, that stand, missed that.
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#13
02-23-2016, 06:28 AM
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Those CRT's are notorious for early failure.
I had to pay dearly for a replacement for mine.
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#14
02-23-2016, 07:12 PM
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The 17" tabletop models from '59 had a factory stand option (made specifically for it), the 21" '58 tabletops did not. The exception is one model that substituted the "wire" legs for a rather plain wheeled cart:
http://www.farmmresearch.com/groups/...ages/56ac0.jpg The stand that came with yours is a period style and about as fitting as you could find.
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#15
02-24-2016, 11:45 AM
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Hooked up my Sencore CR70 CRT Tester.
Initially completely dead at 2.35v Filament. Read Bandersen stating that he surmised it was a 6v CRT by the Filament current draw. Mine was drawing 17ma at 2.35v. Courageously, I slowly cranked the voltage to 6.3v and the filament draw was 90ma. Cutoff and Emission dead. 5 minutes at 6.3v Filament and at the Cutoff setting I could set the Cutoff within the setting zone on the CR70 tester meter. Emission came up a little but still deep in the red. When I switch back to Cutoff, it goes to zero and leaving it at Cutoff for a few minutes it will rise to the settings on the meter. Letting it bake at 6.3v Filament for a while. Got any suggestions?
__________________
CW 1950 Zenith Porthole - "Lincoln"
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