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6Q7GTY

Sensibly equivalent to:
CV589 DH63
See also:
The 'Magic Three' Valves - The GTY Suffix
    
Extras ▼

 

The 6Q7GTY is clearly also marked CV589. As the GT stands for glass tubular the Y suffix denotes better RF performance from the base.
This double diode triode was designed for receiver audio use.
The diodes would be for signal and AGC rectification and the triode would act as AGC amplifier or first audio amplifier.
The wide glass tube envelope is 27 mm in diameter and, excluding the IO base pins, is 72 mm tall.
References: 1040.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
a(d2)
a(d1)
nc
h
k
g1

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
6.3
0.3
250
-3
1
58k
1.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated June 03, 2012.
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