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6JH6

Sensibly equivalent to:
6BZ6
    
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The 6JH6 is described as a semi remote cut off pentode (Variable μ) for use in television receivers within the IF strip. Thus it was designed to provide wideband amplification at 30 - 40 MHz.
The bright beam plate reveals that this is constructed as a beam tetrode. The two inner grids pass flat across the cathode.
The two part anode with strap across the grid ends. The beam plate is clearly seen as is the shape of the screen grid winding.
The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 46 mm tall.
References: Data-sheet. Type 6JH6 was first introduced in 1955.

 

Pin Connections
B7G
1
2
3
4
5
6
7
g1
k
h
h
a
g2
g3

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
125
125
-4
14.0
3.6
0.26M
8.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 13, 2020.
shape:thin.glass.tube construction:all.glass type:pentode age:1960.1975 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.k pin:3.h pin:4.h pin:5.a pin:6.g2 pin:7.g3
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