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B329

Sensibly equivalent to:
12AU7 CV491 E2163 ECC82
See also:
Valves and their Habits - Pin Compatible Double Triodes
    
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The B329 is a double triode with separate cathode connections. An amplification factor of 17 is quoted. The data-sheet makes the point that Type B329 is the commercial equivalent of CV491.
The each triode section can dissipate 2.5 Watts.
The working part of the anode is about half the total width, the rest is cooling fin.
The thin glass tube envelope is 20 mm in diameter and the length excluding the B9A base pins, is 49 mm.
References: Datasheet & 1040.

 

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)
hct

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
gm
6.3
0.3
250
-8.5
10.5
2.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 01, 2014.
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