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5U4G

Sensibly equivalent to:
53KU 5T4 CV575 CV1575 U52 VT-244
    
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The 5U4G rectifier delivers 100 Watts of DC power. It would be used for all types of medium power equipment and was used extensively in 1940's equipment.
Each anode is folded from a single sheet and ribbed for strength. The working faces are flat and the ends are rounded.
View from the pinch end, the filament is an oxide coated ribbon and the anodes are stitched together with the side flange spot welded to the support rods.
The classic envelope is 50 mm in diameter and, excluding the IO base pins, is 117 mm tall.
References: Datasheet, 1040 & 1043. Type 5U4G was first introduced in 1938.

 

Pin Connections
IO
2
4
6
8
f
a(2)
a(1)
f

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
5.0
3.0
450
225
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 20, 2016.
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