The Cathode Ray Tube site
150 years of CRT evolution
The Dutch collection

VCR97 6" Radar display tube (1940)
One of the first radar display tubes used in WWII in the ASV long range amplitude display.
Medium persistence P1 green phosphor SC12 base.
Often used as homebrew TV display after WWII.

Ferranti LTD CV262 / VCR516
9" Radar display tube.
Post WWII radar tube with magnetic deflection and focus. Very long persistence green phosphor.

National Union 5FP7 (1942) 5" Radar display tube
WW II Radar tube long persistence green Phosphor and magnetic deflection .
The P4 (white) phosphor types were used in TV camera viewfinders.

CV1526 2,5"CRT
Green phosphor 12 pin Spigot base.
Early WWII Radar CRT

CV1397 6" Radar display CRT
Long persistence yellow phosphor SC12 base.

Radar CRT's have a long persistence phosphor,due to this effect the image fades slowly. The picure was visible
until the next sweep erased the former image.
The VCR types does mean Valve Cathode Ray and were used in the British Royal Air Force.
CV stands for Common Valve, used in the British Army.These were selected common tubes with high specs.