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Clever diagnostic tool
Couldn't make anything happen with any magnets, any placement.
I found this item on eBay a couple of years ago for a buck or two, on the off-chance it might have a new 6U5/6G5 for a console tube radio I was restoring. Ended up having a useless 6AF6 so I set it aside and didn't give it any more thought. Suddenly realized it would be most helpful here. Turns out it's a pretty cool old TV serviceman's tool.
My capehart passes the first 4 bullets in the instruction sheet. Filament glows, Flourescent screen glows brightly, one side varies nicely with the brightness control. The other side stays fully closed regardless of any actions. Ergo, video is not present. I guess in hindsight I could have determined this with my 'scope by probing the CRT pins. Back in the day of house-calls, this was a 'scope in a pocket. Neat.
Again, I have too many open projects on my plate, so I'll defer any further work on the Capehart 'til some other things are out of the way. Magnavox TV is awaiting parts (in the mail, other thread), re-doing a Zenith Transoceanic radio as a favor real quick in the interim. Workbench won't hold another chassis.
-k
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