Cathode Ray Tubes
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Radar CRTs
Watch this huge early CV956 10" tube.
With a length of 60cm compared with the DG7-32. Thought to be a radar display tube green phosphor. SC12 base.

 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.
Early pre-WWII radar tube with magnetic deflection and focus. Very long persistence green phosphor.
National Union 5FP7  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.

CV5282 GEC Radar display tube.
Telefunken LB8 German WWII Radar CRT
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