Summary
CV22 thyratron, mercury vapour. Made in England by an unknown Maker. Filament 2.5 volts at 22 amps; anode 20 kilovolts peak 65 amps. Used for generating current pulses, of short duration, in radar. Two CV22 thyratrons were used to generate a 40A/25kV 1µs pulse at 400pps for the GL3 S-band radar.
Classification: Transmitting' (radar) or 'switching' would be closer; this type of valve was not used as a rectifier - see Reference: Virtual Museum.
Physical Description
Cylindrical bulb with top cap but no base as such. Support clamped around base designed to mount valve on a panel. Mounted upside down on display block. Flying leads for filament insulated by ceramic fishbone beads. The two coloured beads indicate the grid connection (yellow) and one end of the filament (red), the other end of the filament is connected to the mounting bracket. Material between clamp and glass may be woven asbestos.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Purchase
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Date Manufactured
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Inscriptions
Bulb: SP15324 Pinch: 15324 Text on display label Mounting clamp: CV22
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
280 mm (Height), 65 mm (Outside Diameter)
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References
Virtual Valve Museum, [Link 1] Accessed 7 Aug 2014.
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Keywords