Sensibly equivalent¶ to:
The 6DS8 / ECH83 is a triode heptode frequency changer has the unusually low anode voltage of 12.6 Volts, the voltage of vehicle batteries. This valve was clearly designed for use in such an environment, Mullard describe it as being designed for use as a mixer in hybrid car radios.
The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins the valve is 59 mm tall.
References: Data-sheet & 1040. Type 6DS8 was first introduced in 1957.
Absolute Maximum Operating Conditions¶
Updated January 28, 2019. shape:thin.glass.tube construction:all.glass type:triode.heptode age:1950.1960 base:b9a heater:6.3v pins:9 pin:1.g2.g4 pin:2.g1 pin:3.k.g5.s pin:4.h pin:5.h pin:6.a pin:7.g3 pin:8.a(t) pin:9.g1(t)