Any one know what deflection angle a 16GP4G picture has? and what does the 'G' on the end mean?

A 16GP4 has a 70 degree deflection angle. I don't know what the G is for.

:Any one know what deflection angle a 16GP4G picture has? and what does the 'G' on the end mean?

Hi

Letters indicate revisions. Don't know of any tubes getting to the letter "G"? No letter is tinted front on 16GP4. "A" is clear glass. "B" is tinted aluminized. "C" is clear aluminized.

16GP4 is a tube with metal shell. Could someone have rebuilt another tube and used glass, calling it 16GP4?

Norm

:A 16GP4 has a 70 degree deflection angle. I don't know what the G is for.
:
::Any one know what deflection angle a 16GP4G picture has? and what does the 'G' on the end mean?