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Z22

Sensibly equivalent to:
2201PT ARP14 CV1333 CV1469
See also:
2 Volt Valves for Battery Receivers
    
Extras ▼

 

The Z22 is a directly heated battery pentode from 1938, designed for broadcast radio reception. The Z22 has a sharp cut-off characteristic and so not designed to be controlled by a negative AGC voltage.
The Marconi brand printed on the zinc screening paint.
The classic envelope is 42 mm in diameter and, excluding the B7 base pins, is 105 mm tall.
Reference: 1043. Type Z22 was first introduced in 1938.

 

Pin Connections
B7
1
2
3
4
5
6
7
tc
m
g1
g3
f
f
-
g2
a

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
2.0
0.10
150
120
0
2.5
0.7
0.7M
1.4
Updated May 21, 2021.
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