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12AU6

Sensibly equivalent to:
CV1961 HF94
See also:
DuMont 12AU6 Box
    
Extras ▼

 

This exhibit is a 12AU6 RF pentode for use up to 50 MHz. Apart from the heater all characteristics are the same as the 6AU6.
The 12AU6 is etched into the glass whilst the DuMont is printed on. This suggests that DuMont were resellers not manufacturers.
The notch in the anode wall gives a chance to see the wire grids.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins the valve is 48 mm tall.
References: Datasheet & 4054. 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 March 12, 2014.
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