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6J1

Sensibly equivalent to:
EF95
See also:
FU-32 Single Ended Stereo Amplifier
    
Extras ▼

 

The 6J1 is a Chinese amplifier pentode. It arrived as part of the FU-32 SE amplifier kit where it is used strapped as a triode. The presence of two cathode pins suggests that the design was originally intended for RF use and as a near equivalent is the EF95 this is indeed the case.
Internally the connections from the base pins are copper. The box anode is open at the sides and thus the three grids are visible.
The working face of the anode.
The heater is folded so that it passes ten times through the cathode tube.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 38 mm tall.
Reference: Datasheet.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.17
120
120
-2.0
7.3
3.2
1M
5.1
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated November 12, 2019.
shape:thin.glass.tube construction:all.glass type:pentode age:post 1975 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.k.g3 pin:3.h pin:4.h pin:5.a pin:6.g2 pin:7.k
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