The 6AU6 is an RF pentode for use up to 50 MHz.

The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins the valve is 53 mm tall.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.3	250	150	-1	10.6	4.3	1.0M	5.2

Thanks to Frank Philipse for supplying the above datasheet

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This exhibit was last updated on 02 July 2007 {find valves by name}