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12AU6

Sensibly equivalent to:
CV1961 HF94
    
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The 12AU6 is an American design. Usage is RF or AF voltage amplification.
The makers name and country of origin.
The request to remain loyal to the brand.
The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 47 mm tall.
Reference: Datasheet. Type 12AU6 was first introduced in 1947.

 

Pin Connections
B7G
1
2
3
4
5
6
7
g1
g3,s
h
h
a
g2
k

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
12.6
0.15
250
150
-1
10.6
4.3
1.0M
5.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated November 28, 2014.
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