The Cathode Ray Tube site
150 years of CRT evolution
The Dutch collection
Watch this huge early CV956 10" tube.
With a length of 60cm compared with the DG7-32. Rradar 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.
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.
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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Cathode Ray Tubes