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LP 4

 
    
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This battery triode was a four volt version of the LP2. As an audio output valve it produced 0.18 Watts.
Power was a pair of accumulators for the filament and a dry battery for the anode supply.
The balloon envelope is 42 mm in diameter and excluding the B4 base pins it is 90 mm high.
Reference: Private communication.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
2.0
0.2
150
-4.5
10.0
4000
4.0
Updated January 04, 2013.
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