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AS4100

 
See also:
The Azide Process
    
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The AS4100 from Tungsram is an RF tetrode or screen grid valve as they were called in 1930 when this was issued.
It is described as a Barium valve and this is the Azide process.
Looking at the electrodes it is clearly a screened grid tetrode for RF and IF use in broadcast receivers.
The balloon envelope is 50 mm in diameter and, excluding the B5 base pins, is 115 mm tall.
References: Datasheet & 1043. Type AS4100 was first introduced in 1930.

 

Pin Connections
B4
1
2
3
4
5
tc
g2
g1
h
h
k
a

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
4.0
1.0
200
100
-6
4.0
1.2
180k
1.42
Updated January 19, 2013.
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