Sensibly equivalent¶ to:
The KTZ73 is an RF beam tetrode for RF and IF applications. It was part of the M-OV 'Uniwatt' range of valves for use with mains or vehicle lead acid batteries.
A year later in 1938 the valve became the KTZ73/6J7G RF pentode. The main differences were the heater being standardised at 6.3 Volts and making it a pentode with g3 connected to pin 5.
The classic envelope is 29 mm in diameter and, excluding the IO base pins, is 72 mm tall.
References: 1043 & 3002. Type KTZ73M was first introduced in 1937.
Absolute Maximum Operating Conditions¶
Updated December20, 2017. shape:classic construction:pinch type:tetrode age:1930.1940 base:io heater:6.3v pins:8 pin:1.m pin:2.h pin:3.a pin:4.g2 pin:5.- pin:6.- pin:7.h pin:8.k pin:tc.g1