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VU111

Sensibly equivalent to:
19G/12 AU5 CV1111 R11 U27 V1907
See also:
Pioneers of HT Rectifiers - Rectifiers for Pulse Modulators
    
Extras ▼

 

This VU111 has the characteristic markings of an M-OV valve. Unlike some of the other versions of the VU111 this has a rectangular anode. Like others the anode is blackened for better cooling by radiation.
This high voltage high power half wave rectifier can deliver 125 Watts. A pair producing 250 Watts could feed a high voltage low current transmitter output stage or RADAR system. Equally this device on its own would supply more than adequate power for a WWII cathode ray tube supply.
The classic envelope is 47 mm in diameter and excluding the B4 base pins, is 121 mm tall.
References: Datasheet.

 

Pin Connections
B4
1
2
3
4
tc
-
-
f
f
a

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
4.0
1.0
5000
50
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 08, 2013.
shape:classic construction:pinch type:rectifier.hw age:1930.1940 base:b4 heater:4.0v pins:4 pin:1.- pin:2.- pin:3.f pin:4.f pin:tc.a
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