Trying to figure out what CRT this is

[Eric H]

I'm guessing a 12LP4 rebuilt with a different gun.
the trap looks too far back so maybe it should have a double?

[Polaraligned]

Not the Dumont button style HV connector.

And that is what I first thought Eric, the trap is awful far back, but it does give a bright raster in that position.

[pendulum]

I might just be a 12lp4 rebuild. I know a lot of sets say they need a double ion trap magnet but for both of the 10bp4 sets I have (which also are supposed to have a dual magnet) they only use single ones and work fine.

[dieseljeep]

Originally Posted by Eric H

I'm guessing a 12LP4 rebuilt with a different gun.
the trap looks too far back so maybe it should have a double?

I think, I mentioned it on a different thread, about an original Philco 12LP4. It was pulled from a scrap set and came with a single magnet ion trap. The ion trap had a Philco part number and the CRT was an EIA 260, so it is a Philco sourced CRT. I kept the ion trap on it, when I stored the tube.
I don't remember buying a rebuilt 10BP4 or a 12LP4, when I started repairing TV's in the late 50's. They were still available.