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HL23

Sensibly equivalent to:
3A/205D CV1130 CV1586 CV2994 VR130
See also:
CV1130 short entry
    
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The HL23 is a low power low impedance low gain, battery triode. The data-sheet describes the HL23 as suitable for a range of application areas within a receiver including AF amplification.
The reverse of this exhibit showes the old stores code 10E/159B as well as the crown and A logo of the UK Air Ministry.
Thanks to Stef Niewiadomski for sending these images.
The classic envelope is 30 mm in diameter and, excluding the MO base pins, is 67 mm tall.
References: Datasheet, 1040 & 1043. Type HL23 was first introduced in 1938.

 

Pin Connections
MO
1
2
3
4
5
6
7
8
f
-
a
-
g1
m
-
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
2.0
0.05
150
-2.4
1.5
27,000
1.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 20, 2017.
shape:classic construction:pinch type:triode age:1930.1940 base:mo heater:2.0v pins:8 pin:1.f pin:2.- pin:3.a pin:4.- pin:5.g1 pin:6.m pin:7.- pin:8.f
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