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PA40

Sensibly equivalent to:
CV3623
    
Extras ▼
The PA40 is a directly heated audio output triode. The heater is the UK standard 4.0 Volts but draws 2.0 Amps. A push-pull pair can deliver up to 41 Watts.
Reference: Data-sheet. Type PA40 was first introduced in 1937. See also 1937 adverts.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
Pout
rl
D
4.0
2.0
450
-96.5
107
40W pair
4,000
5%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated July 02, 2020.
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