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 de-ionisation time is 400 μ seconds.
The KB/D identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the D identifies the maker as Mullard Radio Valve Co., Mitcham.
The solid pins and the location pip on the base shell indicate the use of a bayonet type base.
The anode lead is enclosed in a glass tube and consists of several twisted strands.
The wide glass tube envelope is 63 mm in diameter and, excluding the special base pins, is 165 mm tall.
Reference: Data-sheet. Type CV2210 was first introduced in 1952. See also1952 adverts.
