Antique radios, Old Time Radios
CV85
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Country:
Great Britain (UK)
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| Identical to |
CV85
= V2023
= 24B1
= REL38A
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| Similar
Tubes |
Normally replaceable-slightly different:
GIT/180E
Other base and data slightly different:
CV486
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| Base |
SPECIAL TUBEBASE in general
Top contact with a cap.
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| Was used by |
Radar |
| Filament |
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| Description |
Spark Gap Trigatron for Delay line discharge/pulse forming in radar modulators.
- 12 pulses per second at 12kV max.
- Peak current 60A.
Hard-glass (pyrex) envelope, filled with argon at 4 atmospheres and oxygen at 20 mm Hg, as quenching agent. The bulb was covered by protective lacquered sock to prevent fragment scattering in case of heavy overloads. Trigatron tubes were made with an extremely high vacuum.The trigger electrode stem was protected by a glass tubing up to the tip.
According to the Virtual Valve Museum data for this tube, it was the first production Trigatron. Available from mid-1942, it was used to drive the CV64 magnetron in H2S radar.
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Dimensions (WHD)
incl. pins / tip |
x 156 x 70 mm / x 6.14 x 2.76 inch |
| Weight |
200 g / 7.05 oz |
| Information source |
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CV85: Manufacturer's Literature
Emilio Ciardiello
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CV85: Manufacturer's Literature
Emilio Ciardiello
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