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EN31

 
See also:
Mullard EN31 Advert
    
Extras ▼

 

The EN31 thyratron is a high frequency type. Mullard describe the EN31 as a thyratron for use in HF timebases and control equipment. The maximum pulse repetition rate is given as 150 kHz. The control ratio is 35 and the voltage drop across the conducting valve is 33 Volts. It is an early type introduced by Mullard and was probably used in radar equipment.
An interesting feature is the mesh anode.
The classic envelope is 38 mm in diameter and, excluding the IO base pins, is 98 mm tall.
References: Datasheet & 1040. Type EN31 was first introduced in 1947.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
-
h
-
-
g1
-
h
k
a

 

Absolute Maximum Operating Conditions
Thyratron
Vh
Ah
Va
mAa
6.3
1.3
1,000
750
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 03, 2013.
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