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The CV2210 is a Xenon filled Thyratron with reliable operation over a wide temperature range. The design use is for speed control of DC motors. Also specified for counting and sorting devices and electronic switching machines. The prototype was the 5544.

The filament needs 60 seconds heating time. The Thyratron is a pulse device and the anode volts and current are limiting values the average current is limited to 3.2 Amps. When conducting the forward voltage drop is 16 Volts. The grid can go negative by a maximum of 250 volts. The deionisation time is 400 μ seconds.

The special four pin base has a turn screw to tighten the skirt in place. The valve has a locating pip for correct insertion into the base.

The wide glass tube envelope is 60 mm in diameter and, excluding the special base pins, is 164 mm tall.

References: Data-sheet. Type CV2210 was first introduced in 1952. See also 1952 adverts.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.