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EL91

Sensibly equivalent to:
16A 6AM5 6P17 7D9 CV136 N144 N77 V887
See also:
Push-Pull EL91 Amplifier
    
Extras ▼

 

The EL91 is an audio output pentode valve for radio receiver use. In single ended configuration it will produce 1.4 Watts, enough for a receiver.
If used in push pull an output of 4 Watts is possible, but this valve was not expected to be used for hi-fi. However, in a small space the sound is excellent.
The blackened anode. The control grid has radiating fins at the top of the supports.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 47 mm long.
References: Data-sheet & 1040. Type EL91 was first introduced in 1949. See also 1949 adverts.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
6.3
0.2
250
250
-13.8
16
2.4
130k
2.6
1.4W
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated June 30, 2017.
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