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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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This B329 is a British Made double triode with separate cathode connections. The envelope carries the second Type designation of ECC82, this is placed above the B329 as the generally known name for this design in the UK was the ECC82.
An amplification factor of 17 is quoted. The data-sheet makes the point that Type B329 is the commercial equivalent of CV491.
The dissipation of each anode is 2.5 Watts and so the anode is quire wide to provide the cooling area required.
The B329 is a general purpose design not normally used at Rf and so no intersection screen is provided.
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 October 21, 2016.
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