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CV424

Sensibly equivalent to:
5894A 5894 CV2797 QQE06-40 QQV06-40
See also:
Inside the QQE03-20
    
Extras ▼

 

The CV424 is a double beam tetrode transmitting valve based on the commercial QQV06-40 from Mullard.
The central column has the beam plates and common screen grid. The control grids are separate and mounted close to the central cathode.
Here the shape of the beam plate is clear and within can be seen the screen grid.
The wide glass tube envelope is 44 mm in diameter and, excluding the B7A base pins, is 104 mm tall.
Reference: Datasheet.

 

Pin Connections
B7A
1
2
3
4
5
6
7
tc
tc
h
g1(2)
g2
k,bp
hct
g1
h
a
a(2)

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
mAg
Pdriv
Pout
Pdiss
freq
f.max
6.3
1.8
600
250
-80
200
18
7
3W
90
40W
275
486
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated July 21, 2019.
shape:wide.glass.tube construction:all.glass type:double.beam.tetrode age:1950.1960 base:b7a heater:6.3v pins:7 pin:1.h pin:2.g1(2) pin:3.g2 pin:4.k.bp pin:5.hct pin:6.g1 pin:7.h pin:tc.a pin:tc.a(2)
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