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6AU6

Sensibly equivalent to:
6AU6A 6AU6WA 6AU6WB 6AU6WC 6J4P 6P2 CV2524 EF94
    
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The 6AU6 is an American design, here made by Mullard. The Mullard equivalent is the EF94. The 6AU6 has controlled warm-up times and is a sharp cut-off type, that is not AGC controlled. Usage is RF or AF amplification.
Through the hole in the side of the anode can be seen the support for the suppressor grid and the notches holding the grid wire.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 47 mm tall.
References: Datasheet & 1040. Type 6AU6 was first introduced in 1946.

 

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
6.3
0.3
250
150
-6.5
10.6
4.3
1.0M
5.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 02, 2015.
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