The 6AS6 is a physically small amplifier pentode. Through holes in the anode plates can be seen the outer two grids. Both wound on notched rods and both rounded at the ends and flattened across the anode width. The cathode assembly is also a flattened tube.

The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 35 mm tall.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	g1	k	h	h	a	g2	g3

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.175	130	120	-2	5.2	3.5	110k	3.2

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 09 June 2007 {find valves by name}