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DET20

Sensibly equivalent to:
CV6 CV1135 NR80 VR135
See also:
CV1135 short entry
    
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The DET20 was given many different type designations but this was the original Dull Emitting Transmitting 20 valve designed by M-OV.
The DET20 is a low voltage high frequency triode with both anode and control grid taken to top caps. Its design use was as a modulator valve.
The anode sheets are perforated and held together by the perforations.
See also VR135, CV6 and the closely related 7193.
The wide glass tube envelope is 27 mm in diameter, and excluding the IO base pins, is 73 mm tall.
References: Datasheet & 1005.

 

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

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
mAa
Pdiss
Pout
freq
f.max
6.3
0.2
300
25
3.5W
4.25W
50MHz
300MHz
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 04, 2015.
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