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VT-244

Sensibly equivalent to:
5U4G
    
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This VT-244 American government valve is also marked on the envelope with the commercial 5U4G designation.
The 5U4G rectifier delivers 100 Watts of DC power, a reasonable size valve. It would be used for all types of medium power equipment.
One anode face view with the oxide coated ribbon filament within.
The 5U4G is marked on the base as well as being etched into the glass.
The valve has a maximum diameter of 51 mm and length excluding the IO base pins, is 119 mm.
References: Datasheet, 1040 & 1043. Type VT-244 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 May 22, 2014.
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