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DuMont RA-112 TV: Next Project
#12

Richard -

I remember we had one of these TVs when I was very young. It was probably ~15 years old, sat in the basement and never worked. Eventually we gave it to the furnace repairman. I never saw it working.

The cabinet style matches the one we had. There are RA-112's with nicer, less "plain" cabinets. I almost would have rather had gotten a similar RA-113 just because the 17", rectangular CRTs are still available. This one has a round, metal/glass 19AP4. The installed tube is a bit weak, but it came with a stronger one. There are no substitutes for it and currently nobody rebuilds them.

You're right, I think this could be a lot more challenging than a radio. A friend has an 8XP4 I can use to bring up and debug the video. Maybe I'll look for a cheap sweep generator at Kutztown next week. I broke down and bought a digital scope recently. I didn't get it specifically for TV debug, but it could be useful.

Can't think of anything witty.
Greg O.
Whitehall, PA


Messages In This Thread
DuMont RA-112 TV: Next Project - by Greg - 10-07-2021, 10:53 PM
RE: DuMont RA-112 TV: Next Project - by GarySP - 10-08-2021, 10:10 AM
RE: DuMont RA-112 TV: Next Project - by Greg - 10-08-2021, 12:34 PM
RE: DuMont RA-112 TV: Next Project - by MrFixr55 - 11-08-2021, 03:00 PM
RE: DuMont RA-112 TV: Next Project - by radiorich - 11-08-2021, 07:56 PM
RE: DuMont RA-112 TV: Next Project - by Greg - 03-04-2022, 11:39 PM
RE: DuMont RA-112 TV: Next Project - by Greg - 05-05-2022, 09:02 AM
RE: DuMont RA-112 TV: Next Project - by radiorich - 05-05-2022, 09:21 AM
RE: DuMont RA-112 TV: Next Project - by Greg - 05-05-2022, 09:29 PM
RE: DuMont RA-112 TV: Next Project - by TV MAN - 05-06-2022, 10:21 AM
RE: DuMont RA-112 TV: Next Project - by Greg - 05-12-2022, 10:52 PM



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