The CV4079 has a commercial equivalent in the GEC A2293 and the prototype was the VX3208. When fitted with flying leads it is called the CV4038.
It is a low impedance triode with an anode dissipation of 15 Watts designed as a series pass element in stabilised power supplies.
The GEC brand label.
There is little visible within the anode except the copper grid support rods. The mica discs have been doubled-up to reduce the damage caused by vibration and shock and thus increase the lifespan of the device.
The KB/Z identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the Z identifies the maker as MO Valve Company, Hammersmith.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 62 mm tall.
Reference: Data-sheet. Type CV4079 was first introduced in 1957. See also1957 adverts.
