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6D4

Sensibly equivalent to:
AFX212 C2381 CV1949 EN93
    
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The 6D4 is a triode thyratron. It was designed for normal relay duty or as a wideband noise source.
In this latter role the valve is connected as a diode with the grid strapped to the cathode and the valve is mounted in a magnetic field.
The side view does not reveal any detail as the anode is a continuous cylinder.
The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 46 mm tall.
References: Datasheet & 1040. Type 6D4 was first introduced in 1944.

 

Pin Connections
B7G
1
2
3
4
5
6
7
g1
ic
h
h
k
ic
a

 

Absolute Maximum Operating Conditions
Thyratron
Vh
Ah
Va
Vg
mAa
6.3
0.25
250
-
25
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 26, 2013.
shape:thin.glass.tube construction:all.glass type:thyratron age:1940.1950 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.ic pin:3.h pin:4.h pin:5.k pin:6.ic pin:7.a
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