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CV4056

Sensibly equivalent to:
CV4055 F/6132 VX7114
    
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The CV4056 is a special quality 6CH6 fitted with flying leads. The B9A based version is the CV4055. The design purpose is as a video output valve. The prototypes were the CV2127 and the 6CH6.
It is a beam tetrode with the beam plates being formed from four vertical support rods with small cross plates top and bottom. The cathode is flat and the grids shaped to pass across the cathode at a constant distance from it.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A flying leads, is 57 mm tall.
References: Data-sheet, 1040 & 3002. Type CV4056 was first introduced in 1956. See also 1956 adverts.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
ic
g1
k
h
h
nc
a
g2
g3

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
6.3
0.75
250
250
-4.5
40
6
50,000
11
3W
8.5%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 08, 2022.
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