Tube ID anyone?

[ectobia]

Can anyone ID these tubes?

Notice, the copper wiring, and poles, the shape of the grid, and the indention on the o-ring support.


I want to know what they are
I can't find any 6dj8 tubes that are neutral for under $25

Has anyone seen tubes like these before? Thanks

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[m6tt]

It definitely appears to be a twin-section tube with an internal divider. Does the divider come out to pin 9? It kinda looks like a space charge tube, but not sure.

 

[ectobia]

Yes, it does.

I found out what it was, NOS 6922 made in slovakia during slovakia's communist era.

also there is a 6dj8 like this made in china from 1990s +