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CV1863

Sensibly equivalent to:
52KU 5Z4GY 5Z4G CV2748 R52
See also:
CV Box Box
    
Extras ▼

 

The CV1863 is a full wave rectifier, prototype 5Z4G. Professional equipment, including radar, etc., sometimes required circuits in which valve cathodes carried large signals and had to 'float' at voltages well below that of the chassis.
Designed to supply equipment of up to 40 Watts total power, this rectifier was made by several manufacturers. This suggests a very popular type, and one that found use in military equipment during WWII.
CV1863 has a black composition base and is the 5Z4G and this exhibit with the brown moisture resistant base is the 5Z4GY.
The anodes set between the mica supports.
The anode fins have holes that reduce the surface area which seems illogical.
The cathode and heater of one half of the valve.
The classic envelope is 44 mm in diameter and, excluding the IO base pins, is 102 mm tall.
References: Datasheet & 1040. Type CV1863 was first introduced in 1935.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
nc
a(2)
nc
a(1)
nc
h,k

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
5.0
2.0
350
125
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December07, 2015.
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