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KTW62

Sensibly equivalent to:
CV1100 KTW61 VR100
    
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The KTW62 (directly equal to the CV1100), KTW61 and KTW63 are all variable-mu screened pentodes for RF amplification. The KTW62 was introduced by M-OV during WWII.
The KTW62 was used in the Marconi 1154/55 transmitter/receiver 'Bomber Set' that was fitter to Lancaster bombers in WWII. The set was also used in Sunderland flying boats and other aircraft but use in the Lancaster has made it an iconic piece of equipment.
The classic envelope is 37 mm in diameter and, excluding the IO base pins, is 104 mm tall.
References: Data-sheet, 1005 & 1043. Type KTW62 was first introduced in 1939. See also 1939 adverts.

 

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
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
100
-3
8.0
2.8
0.46M
2.9
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 06, 2022.
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