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NR64

Sensibly equivalent to:
CV1100 CV1281 KTW61 KTW62 POVT193 VR100 W281
    
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The NR64 naval receiver valve is a variable μ amplifier beam tetrode. This suggests use as RF or IF stages in an AGC controlled superhet receiver. The control grid connected to the top cap reinforces this view.
The classic envelope is 36 mm in diameter and, excluding the IO base pins, is 104 mm tall.
References: 1040 & 1043.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2
g3
nc
h
k
g1

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
100
-3
8.0
2.7
0.46M
2.9
Updated January 06, 2022.
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