The 6SL7GT is a medium impedance double triode with a modest gain. It was probably a general purpose valve.

The wide glass tube envelope is 28 mm in diameter and, excluding the IO base pins, is 62 mm tall.

 
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
	6.3	0.3	250	-2	2.3	44,000	1.6

Thanks to Frank Philipse for supplying the above datasheet

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This exhibit was last updated on 04 July 2007 {find valves by name}