The 6V4 is a small full wave rectifier. Zaerix re-branded valves from Eastern Europe and their origins were rarely known. This valve is different.

The rear of the envelope proudly proclaims that it was made in Poland.

The thin glass tube envelope is 22 mm in diameter and, excluding the B9A base pins, is 62 mm tall.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Rectifier	Vh	Ah	Va	mAa
	6.3	0.6	325	70

Thanks to Frank Philipse for supplying the above datasheet

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This exhibit was last updated on 05 February 2008 {find valves by name}