The 12AT7WA is a special quality version of the ECC81 VHF double triode.

See Also the Brimar 6060 and/or the Mullard M8162.

These valves are useful for RF stages, oscillators and frequency multipliers.

The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 47 mm long.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g1(2)	k(2)	h	h	a	g1	k	hct

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.3	170	-1	8.5	11k	5.9

Thanks to Frank Philipse for supplying the above datasheet

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