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#31
07-22-2016, 08:41 PM
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I've got a yoke/flyback transformer, but I've never tested a yoke before. Any tips on how to test this yoke? The CRT tested ok on my tester, so I'm thinking there's something wrong with my yoke.
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#32
07-22-2016, 08:58 PM
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Quote:
If it's a vintage tester, you can find many equipment manuals at BAMA: http://bama.edebris.com/manuals/ Regards, Phil Nelson
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#33
07-23-2016, 01:36 PM
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I think I may switch the CRT from my holiday to my barberpole since it's worth the most. I'll search for a new 21fdp4 for my holiday and hopefully find another some day. My barberpole I play on having and watching in my living room too.
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#34
07-23-2016, 10:51 PM
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The wire that connects the grid cap to hv rectifier broke off at the flyback...I had an nos one so I dug down a little and soldered it on. The flyback has to be recoated anyway and I have rtv 4165 I believe. Is that suitable? I believe when I bought it, it was rated for 15k+ volts.
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#35
07-25-2016, 09:06 AM
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I did a google search for RTV 4165 and came up empty. Are you sure that's what you have ?
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#36
07-25-2016, 05:52 PM
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I'll look and see, I may be wrong. A 1 watt resistor in the tuner also over heated, not sure why. I got the video to work, but now I only have a white raster. Not sure where my video is lost or maybe my tuner is bad?
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#37
07-25-2016, 06:56 PM
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It is Dow Corning 3145 rtv sealant.
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#38
07-25-2016, 10:13 PM
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This is what I'm getting now with a DVD player. Like I said above, I had pretty good video earlier. What happened?
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#39
07-25-2016, 10:27 PM
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Forgot the image...
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#40
07-29-2016, 03:43 PM
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After a little help from another Predicta restorer, I found out that the black plug from the tuner to the main chassis, can be plugged in more than one way. Only one way works right! I've got my video working again, but now I'm trying to figure out where my interference is coming from?
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| Audiokarma |
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#41
07-29-2016, 04:49 PM
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What is your source? (DVD player, VCR, etc.?)
Phil Nelson Phil's Old Radios http://antiqueradio.org/index.html
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#42
07-29-2016, 04:56 PM
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A low grade DVD player and its hooked up by jumper cables to a 300ohm coax converter. So plenty of areas for interference. I'm going to hook up a digital converter box straight to the tuner and see if it's better. Btw, if anyone needs any Predicta parts or tips on restoration, I would definitely recommend Larry Whitlock. He's been restoring predictas for years and has extensive knowledge on these complicated sets. He's given me a lot of invaluable help with the last three predictas I've restored!
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#43
07-29-2016, 05:20 PM
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+1 for Larry Whitlock!
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#44
07-30-2016, 09:09 PM
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Thanks guys, glad I can help.
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#45
07-31-2016, 11:02 PM
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Ok guys, I think I'm calling this Predicta done! I'm going to get some new brass plated screws that look like the originals, to hold the back on. The originals are a little rusty. Also I'm waiting on a replacement on/off volume on from Larry.
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| Audiokarma |
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