1DP1 1 inch CRT. Its a ONE, not an "I" (eye) as the first character.
Standard CRT numbering system, where the first numeral, is the rough diameter, in inches, the 3rd character, is always a "P", and the number after the "P", is the phosphor type. P1 is green. P4 would be white. I have a 1CP1, and a 1EP1 in my tube stash. More data, on the tube in the eBay listing: https://www.radiomuseum.org/tubes/tube_1dp1.html http://tubedata.milbert.com/sheets/084/1/1DP1.pdf On Thursday, May 10, 2018 at 12:11:28 PM UTC-7, SWISSNIXIE - Jonathan F. wrote: > > > Found this by accident > > https://www.ebay.com/itm/Old-vintage-NOS-NU-IDPI-144-Made-in-USA-radio-antique-apparatus-vacuum-tube/263659229862 > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/895b2682-c8fb-4f05-a1f9-d7812425b712%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
