The 6SN7W is an American glass tubular version of the mid 1930s metal double triode valve.

The W designation is probably a special quality version. This exhibit is considerably shorter than the 6SN7W and carries the GT extension.

The construction uses a glass disc base and no pinch. This would suggest a later production model of the W variant.

Designed for audio applications the shared cathode would make phase splitters a natural choice of application.

The wide glass tube envelope is 28 mm in diameter and excluding the IO base pin length, stands 69 mm high.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.8	250	-0	3	7.7k	1.6

Thanks to Frank Philipse for supplying the above datasheet

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