▼ Menu

EF83

 
    
Extras ▼

 

The EF83 is a variable-mu AF voltage amplifying pentode.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.
References: Datasheet, 3002 & 1040. Type EF83 was first introduced in 1956.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
g2
s
k
h
h
a
s
g3
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.2
250
50
-1.6
4.0
1.15
0.5M
1.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated July 04, 2018.
shape:thin.glass.tube construction:all.glass type:pentode age:1950.1960 base:b9a heater:6.3v pins:9 pin:1.g2 pin:2.s pin:3.k pin:4.h pin:5.h pin:6.a pin:7.s pin:8.g3 pin:9.g1
Return to Main Index