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KTZ73M

Sensibly equivalent to:
ARP38 CV1343 POVT149
    
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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.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2
-
-
h
k
g1

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.0
0.16
250
100
-3
2.0
0.25
1.5M
1.5
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
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