The EL506 is an audio output pentode. In single ended use the typical output would be 10 Watts at 13% total distortion.

Push pull pairs were used in 30 Watt amplifiers and the electrode dimensions suggest a 25 to 30 Watt anode dissipation.

The wide glass tube envelope is 27 mm in diameter and, excluding the B9D base pins, is 68 mm tall. Thanks to John Rumens for donating this valve.

 
Pin Connections

B9D	1	2	3	4	5	6	7	8	9
	g2	g1	k,g3	h	h	g1	g2	ic	a

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.8	300	300	-10.0	60	8.0	25,000	10.2

This exhibit was last updated on 27 August 2005