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CV2127

Sensibly equivalent to:
6132 6CH6 7D10 CV4055 EL821
    
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The CV2127 is a video output pentode for TV and Radar. The commercial equivalent is type 6CH6 as can be seen on the envelope.
Within the cylindrical anode are four vertical rods that may be beam plates or g3. The screen grid is a flattened helix supported on notched rods. The closer wound g1 is close to the flattened cylinder of the cathode and the grid wires pass horizontally in front of the cathode. In this way the g2 wires appear to slant in front of g1.
The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins measures 60 mm tall.
References: Datasheet, 1040, 3002. Type CV2127 was first introduced in 1952.

 

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
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.75
250
250
-4.5
40
6
50k
11
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 12, 2013.
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