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KTZ63

Sensibly equivalent to:
6J7G 6S7 ARP16 CV1074 NR83 VT74 Z63
    
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The KTZ63 RF amplifier pentode, equivalent to a 6J7G was also noted as a low noise audio pre-amplifier.
The paper logo of Marconi's Wireless Telegraph company.
The classic envelope is 39 mm in diameter and, excluding the IO base pins, is 105 mm tall.
References: Data-sheet & 1043. Type KTZ63 was first introduced in 1937.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
100
-2
1.0
0.25
1.5M
1.23
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December05, 2017.
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