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6K7G

Sensibly equivalent to:
CV1941 KTW63 NR81 VT-86A W63
See also:
The 'Magic Three' Valves
    
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The 6K7G is a screened pentode and was designed for intermediate frequency amplifiers in superhet receivers. It is high impedance type allowing for a high Q in the tuned anode circuit.
See also 6K7 metal envelope version and 6K7GT glass tubular type.
This is the same valve, Sylvania USA on one side of the base and Canadian Westinghouse on the other side.
The screening includes a top and bottom plate as well as the main cylindrical screen.
The classic envelope is 38 mm in diameter and, excluding the IO base pins the valve is 96 mm tall.
References: Datasheet, 1040 & 1043. Type 6K7G was first introduced in 1936.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
125
-3
10.5
2.6
0.6M
1.65
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 28, 2014.
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