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FW4-500

Sensibly equivalent to:
45-IU AU1 CV1264 NU12 RV200/600 U18/20
    
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The FW4/500 full wave rectifier is a higher power device than most full wave rectifiers at 500 Volts at 250 mA. The valve is directly heated. The maximum reservoir capacitor is 16 µF and the minimum effective series resistance has to be 200 Ohms.
The classic envelope is 48 mm in diameter, and excluding the B4 base pins, is 120 mm tall.
References: Datasheet, 1040 & 1043. Type FW4-500 was first introduced in 1939.

 

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

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
4.0
3.0
500
250
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 14, 2013.
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