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CV4005

Sensibly equivalent to:
6063 6063 6X4W EZ90 QA2407 U78 VX7061
See also:
GEC CV4005 U78, CV4014 Z77 & CV4062 N78 Advert
    
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The CV4005 is a special quality version of the commercial U78 miniature HT full wave rectifier. The construction is of two anodes set around a common cathode assembly.Comparing the images of the U78 and the CV4005 it can be seen that the the SQ version has double micas top and bottom. Research into modes of failure of valves subject to vibration, as found in aircraft etc., found that adding a second sheet greatly reduced the destruction of the mica.
The two anodes are placed at right angles to one another.
The two anodes are placed at right angles to one another.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 59 mm tall.
References: Datasheet & 1040. Type CV4005 was first introduced in 1959.

 

Pin Connections
B7G
1
2
3
4
5
6
7
a(2)
-
h
h
-
a(1)
k

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
6.3
0.6
325
70
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 05, 2015.
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