View Single Post
  #4  
Old 04-15-2018, 01:05 AM
Robert Grant's Avatar
Robert Grant Robert Grant is offline
VideoKarma Member
 
Join Date: Feb 2008
Location: Monroe County, MI
Posts: 518
Quote:
Originally Posted by miniman82 View Post
I completed a 17CP4 metal cone tube that is still holding vacuum today, which proved the basic operation of the equipment at the museum. That tube mistakenly had a gun with a 12v filament installed in it, we still don't know how that happened but at least the tube works.
Maybe you should write the EIA (or successor of same) for the designation of this unique tube.

Looking at Frank's tube site, the last 17" CRT code was the 17EZP22*, so I guess you have the world's only 17FAP4.

*noting the real oddity of the 17QCP(n) series available with many different types of phosphor.
Reply With Quote