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CV187

Sensibly equivalent to:
U19 VU508
    
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The CV187 is high voltage rectifier designed for high power applications. The maximum reservoir capacitor that can be fed is 4 µF and the valve needs a minimum effective series resistance of 600 Ohms.
A pair of these valves would be able to supply sufficient power of a reasonably sized transmitter.
The classic envelope is 48 mm in diameter and, excluding the B4 base pins, is 160 mm tall.
References: Datasheet. Type CV187 was first introduced in 1947.

 

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

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
4.0
3.3
2500
250
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 04, 2013.
shape:classic construction:pinch type:rectifier.hw age:1940.1950 base:b4 heater:4.0v pins:4 pin:1.- pin:2.- pin:3.f pin:4.f pin:tc.a
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