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6H8C

Sensibly equivalent to:
6SN7GT
See also:
6N8P and 6P3P Single Ended Stereo Amplifier
    
Extras ▼

 

This 6H8C was supplied as part of an amplifier kit. The OTK on the base indicates that it is Russian in origin and made to military specifications. The 6H8C is equivalent to the 6SN7GT.
The twin triodes secured to the pinch. The base carries the OTK stamp.
One triode end on.
The wide glass tube envelope is 28 mm in diameter and excluding the IO base pins, is 75 mm tall.
Reference: Datasheet.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
g1(1)
a(1)
k(1)
g1(2)
a(2)
k(2)
8
h

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
6.3
0.6
250
-8
9.0
7,700
2.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 12, 2020.
shape:wide.glass.tube construction:glass.foot type:double.triode base:io heater:6.3v pins:8 pin:1.g1(1) pin:2.a(1) pin:3.k(1) pin:4.g1(2) pin:5.a(2) pin:6.k(2) pin:7.8 pin:8.h
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