#46
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Some, but not all
My 8TS30 has an electromagnetic ion trap. Pm speaker tho.
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"Restoring a tube TV is like going to war. A color one is like a land war in Asia." |
#47
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Bandersen : what was that picture tube you used in your 6TS30 restoration.
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#48
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My ion trap is the PM type
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#49
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Quote:
A few things to keep in mind. The 5AXP4 does not used an ion trap or focus coil so you have to leave them off. If you don't, the image will be very blurry and pushed off center. |
#50
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Quote:
Could be replaced with a 6.8K 50W adjustable wirewound, set for 5800 ohms. The original is only rated at 25 W, but a modern 50W unit is a closer mechanical fit to the original. |
Audiokarma |
#51
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Thanks N2Ixx and Bandersen. I have a chance to pick up another 8TS30 and its Air King equivalent 8TS30.
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#52
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What's your advise concerning those non-polarized yellow capacitors. The ones under a 1 MFD. I know in power supplies they must be polarized, but what about under the chassis with plate to grid connections and when they are used to filter to ground.
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#53
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It doesn't matter which way you hook up the modern plastic film caps.
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#54
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How about that HV capacitor c-187 in the HV cage. Any thoughts about testing it and replacing it if its bad.
I also got two more 8TS30 tvs today. |
#55
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The ceramic "doorknob" HV caps rarely go bad in my experience. No need for routine replacement.
Hard to test it except in the set, under operating voltage. If bad, it will arc over or short out the high voltage. Similar caps are still made, but expensive. If you actually need one, look on eBay, or ask around here and somebody will have one. Last edited by N2IXK; 05-27-2017 at 06:39 AM. |
Audiokarma |
#56
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Quote:
Well, close to nobody... |
#57
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Quote:
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#58
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Thanks. All this info sends me in the right direction. Just picked up another 2 - 8TS30 chassis.
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#59
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M3-SRT8: Air-King A-1000 cabinet - that was one of the sets I got today. In good condition two.
I'll have to check out the two resistors underneath the 1B3-GT (233/235.) Bandersen has an excellent video series on youtube of his 6TS30 restoration. Been studying that closely and he had a section on checking those two resistors. Good luck with your Air King. If those scans check out ok, let me know. I will be restoring that cabinet too. I think the decals are the same as the RCA decals and you can get them on the Antique Radio supply site. |
#60
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The 2 resistors under the 1B3 socket are known to fail, particularly the 1M one in series with the anode lead. They can both be checked for value from the topside of the chassis, without dismounting the 1B3 socket.
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Audiokarma |
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