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VS2

Sensibly equivalent to:
CV1319
See also:
Some Important British Valves - CV171 short entry
    
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The VS2 is a variable-mu amplifier pentode. The filament is for accumulator use and the anode is designed for dry battery operation with a maximum anode voltage of 150 Volts. Exhibit VS2 shows this valve with full zinc paint external metalisation.
The Osram label with the edge of the box screen grid above.
The screen grid is a complete box with the grid itself being a woven mesh. he anode exists as two small flat plates mounted eith side of the screen grid box.
The plastic moulding for the top cap connection is missing but the connection to the anode is clear. The ridge pressed into the anode plate gives it mechanical stability.
A close-up view of the screen grid and anode plate.
The balloon envelope is 44 mm in diameter, and excluding the B4 base pins is 106 mm tall.
References: Datasheet & 1040.

 

Pin Connections
B4
1
2
3
4
tc
g2
g1
f
f
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
2.0
0.18
150
90
0
2.5
0.5
1.4
PDF scanned from an original document held by the museum
Updated April 05, 2015.
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