picture tubes

[Eric H]

Originally Posted by nasadowsk

Is 8BP4 the one that the little 50's RCA portable uses? if so, I could use a good one (mine has virtually NO picture)

Did you test your tube? The ion trap is very critical on these, even leaving the metal shield off will kill the picture.

[ohohyodafarted]

I'm interested in the 10 and 12 inch roundies 10bp4, 10fp4, 12lp4, 12kp4 if they have any.

[radio nut]

Originally Posted by ohohyodafarted

I'm interested in the 10 and 12 inch roundies 10bp4, 10fp4, 12lp4, 12kp4 if they have any.

They do have some used 10+12 inch tubes. I will start testing them friday. The bad thing about some of there stock are the part numbers. The majority of thier stock is military surplus. They have 10 inch dumont tubes they have 3,5,7,8, inch tubes all the way up to 20 inch(just a guess, I did not measure it) or so round pic.tubes, but they have military part numbers.I have to sort through these to find the hidden gems that we can use.Doug

[Mike Stamper]

I need a good used 12lp4. Are any available?

[Findm-Keepm]

Originally Posted by radio nut

The bad thing about some of there stock are the part numbers. The majority of thier stock is military surplus. Doug

I've got access to some Military logistics data (all strictly Unclassified) and decided to pull the data for "P4" and "P22" phosphor CRTs. Attached are two PDFs with the raw logistics data. They are text searchable. Hope it helps!

Cheers,

[Findm-Keepm]

I just noticed that in my previous reply, the Color CRT document has the black and white info in it as well. I guess I didn't clear the print to file queue.

Cheers