I have a 25mm electrostatic tube with a PDA (I need to dig it out to tell you its number but I remember it has a CVxxxx number) - rather a surprise when I pulled it out of its box. Also has a very fine trace.

Grahame


On 07/12/2016 17:57, John Rehwinkel wrote:
Marcin, what 12 inch tubes do you have?
I also have a 12" electrostatic deflection CRT, a Thomas K2261P7.  I also have an 
oddball small one (also Thomas), a 1E36P20, which is a tiny electrostatic deflection unit 
with a 3/4" or so screen and, unusually, post deflection acceleration.  I think it 
was built for a military helmet display or somesuch.  It has a truly fine trace without 
the PDA hooked up.  With the PDA, I'm guessing it combines a fine trace and high 
brightness.

- John


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