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CV1375

Sensibly equivalent to:
6BY7 EF85
See also:
Valves and their Habits
    
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The CV1375 is a VHF variable μ pentode based on the EF85 and is the counterpart to the EF80 straight RF pentode. The main use was as a wideband amplifier.
It is a true pentode with three wire grids. The anode consists of a punched sheet bent into two side plates and a connecting strap.
The outer perforated metal screen hides most details but the grid wires can be glimpsed.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 61 mm tall.
References: Data-sheet & 1040. Type CV1375 was first introduced in 1951.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
100
-2.0
10.0
2.5
0.5M
6.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 27, 2021.
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