The CV2325 counter indicator is a cold cathode device that is viewed through an end window. The trade name for these counters is Dekatron and the commercial equivalent for this tube is the GS10C.
The guide wires allow a bi-directional count at up to 4 kHz.
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 base pins, locating lug and contact spigot. The central base connection is to the common anode.
The glowing orange discharge is passed from cathode to cathode by guide wires and after 10 pulses an output pulse is generated.
The end window envelope is 32 mm in diameter and, excluding the special base pins, is 71 mm tall.
References: Data-sheet & 3002. Type CV2325 was first introduced in 1959. See also1959 adverts.
