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TS4

 
    
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The TS4 is a general purpose triode that was introduced in 1926.
The envelope is fully silvered inside.
Looking through the gettering the grid can be seen to be formed from a plate punched to leave a series of strips between end pieces. The plate is then bent into a cylinder.
The balloon envelope is 44 mm in diameter, and excluding the B4 base pins is 90 mm tall.
Reference: 1043. Type TS4 was first introduced in 1926.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
3.4-3.7
0.06
20-50
-
-
18,000
0.5
Updated July 21, 2019.
shape:balloon construction:pinch type:triode age:1920.1930 base:b4 pins:4 pin:1.a pin:2.g1 pin:3.f pin:4.f
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