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.

 
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 datasheet

This exhibit was last updated on 16 April 2007 {find valves by name}