CV221 X-band TR
Cell
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The TR cell measures 100x53x34mm
overall. The apertures are approximately 22mm inside diameter. |
The CV221 replaced the CV114.
The prototype was E1365, developed in early 1942. It used a mixture of
argon and water vapour at 6mm Hg pressure each. It differs from the CV114
as it has a tellurium copper body and gold ring seals for the window and
diaphragm assemblies, which allowed the whole device to be clamped together
and baked at 400C while being pumped to outgas the assembly - the temperature
forming the vacuum seals by diffusion of gold into the mating copper surfaces.
In September 1943 the E1365 was type approved as CV221 and production
continued throughout 1946.
Nominal frequency at which
spark-gap will operate |
9375MHz |
Minimum priming voltage |
-1000V dc |
Continuous priming current |
0.15mA +/- 0.05 |
Max. mean line power in
equipment |
100W |
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