The Z359 is an RF pentode with a high mutual conductance designed for video or other wideband RF amplification.

The Z759 is the same valve but with a 6.3V heater.

The envelope is opaque all round. The GEC logo denotes a professional device.

The thin glass tube envelope is 21 mm in diameter, and excluding the B9A base pins is 47 mm tall.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	k	g1	k	-	h	h	a	g2	g3,s

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pdiss
	12.6	0.3	250	250	-2	20.0	5.5	0.5M	15.0	5W

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 07 June 2009