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CV5331

Sensibly equivalent to:
6ES8 ECC189
    
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The CV5331 is a high slope VHF double triode.
The low operating voltage suggests that this valve was expected to operate in cascode.
See also ECC189 for the directly equivalent commercial version.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 48 mm tall.
References: Datasheet & 1040. Type CV5331 was first introduced in 1960.

 

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

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
gm
μ
6.3
0.365
90
-1.4
15.0
12.5
34
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 16, 2013.
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