The DL96 is an audio output valve from Mullard's low consumption dry battery valves from the 1950s. The audio output is low at 0.2 Watts but considering the low filament power it is quite remarkable.

The thin glass tube envelope is 17 mm in diameter and, excluding the B7G base pins, is 46 mm tall.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	f-	a	g2	-	fct	g1	f+

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	1.4	0.05	85	85	-5.2	5	0.9	150,000	1.4	0.2	10%

Thanks to Frank Philipse for supplying the above datasheet

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This exhibit was last updated on 06 July 2007 {find valves by name}