▼ Menu

DW3

Sensibly equivalent to:
DW4-350 R2
    
Extras ▼

 

The DW3 full wave directly heated rectifier was introduced by Mullard in 1931 and remained current production for some years.
Our other DW3 has a clear envelope and the construction of the twin anode cavities and ribbon filament can clearly be seen.
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.
References: Datasheet & 1043. Type DW3 was first introduced in 1931.

 

Pin Connections
B4
1
2
3
4
a(1)
a(2)
f
f

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
4.0
2.0
350
120
Thanks to Andy Cowley for supplying the above PDF datasheet.
Updated December19, 2012.
Return to Main Index