The B36 is an audio double triode with a 12.6 Volt heater. It is a British (MOV) copy of the American 12SN7.

The construction uses a glass pinch and although two separate electrode structures are visible through the envelope.

Designed for audio applications the valve has independent cathodes.

The wide glass tube envelope is 28 mm in diameter and excluding the IO base pin length, stands 71 mm high.

 
Pin Connections

IO	1	2	3	4	5	6	7	8
	g1(2)	a(2)	k(2)	g1(1)	a(1)	k(1)	h	h

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	12.6	0.3	250	-8	9.0	7,700	2.6

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 05 July 2007 {find valves by name}