The 35W4 is a half wave rectifier designed for either 150 mA or 300 mA heater chains as the heater is centre tapped. The protective minimum series resistance has to be 120 Ohms and the rectifier will feed a reservoir capacitor of 40 μF maximum.

The anode plate has additional side fins for maximum cooling.

The thin glass tube envelope is 17 mm in diameter, and excluding the B7G base pins is 57 mm tall.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	-	-	h	h	a	hct	k

 
Absolute Maximum Operating Conditions

Rectifier	Vh	Ah	Va	mAa
	35	0.15	250	100

Thanks to Frank Philipse for supplying the above datasheet

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