The DW3 full wave directly heated rectifier was introduced by Mullard in 1931 and remained current production for some years.

The envelope dome contains the etched lettering. The information contained is almost all the essential operating parameters.

The balloon envelope is 58 mm in diameter and, excluding the B4 base pins, is 122 mm tall.

 
Absolute Maximum Operating Conditions

Rectifier	Vh	Ah	Va	mAa
	4.0	2.0	350	120

This exhibit was last updated on 02 December 2007