Silica
valve exhibits |
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Thumbnail |
Type |
Description |
Notes |
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CV14 |
This is the swan song for silica
valves. Around 1940 it was proposed for VHF high-power radar transmitters.
Never went out the experimental phase. In 1943 it had been already canceled
from the CV register. |
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NT45A |
Small transmitting triode, 1.2
kW. Complete with history sheet for return to a workshop in case of failures.
Also referred to as CV1226, A.P.1347 |
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NT57D |
Early silica triode designed for
radar transmitters. Short electrodes, to operate at 45 MHz. With new lead
sealing, it replaced the NT57 in 1938 |
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NT57T |
Improved version of NT57.
Thoriated-tungsten filament with 5 A current emission, about twice the
current of NT57. |
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NT63A |
Silica transmitting pentode. 2.5
kW plate dissipation. Also referred to as CV1239, A.P.798A, 10E/442 |
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TYS5-2000 |
Power triode, capable of
operation to 30 MHz. 2 kW plate power
dissipation. |
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