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EL11

 
    
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The EL11 is an audio output pentode on a continental footless base.
In Class A single ended service an output of 4.2 Watts at 10% distortion is achieved. In Class AB1 a pair can generate 8.2 Watts.
The top of the envelope bears the makers name and type designation etched into the glass.
The classic envelope is 44 mm in diameter, and excluding the footless base pins is 113 mm tall.
References: Datasheet & 3002 Type EL11 was first introduced in 1938.

 

Pin Connections
Footless
1
2
3
4
5
6
7
8
g2
g1
k,g3
-
h
h
-
a

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
rk
Pout
6.3
0.9
250
250
-6.0
36.0
4.0
7,000
9.0
150
4.5W
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 02, 2013.
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