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S2

 
    
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The Ferranti S2 is a screen grid RF tetrode. It was designated for use as a frequency changer in battery radio receivers where it would be heated by a two Volt accumulator.
The classic envelope is 42 mm in diameter and, excluding the B4 base pins, is 106 mm tall.
References: 1040 & 1043. Type S2 was first introduced in 1932.

 

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

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
2.0
0.15
120
60
-1
2.25
0.3
0.3M
1.1
Updated January 18, 2013.
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