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ECC83

Sensibly equivalent to:
12AX7 12DT7 6L13 B339 CV492 E2164 E813CC
See also:
Mullard's ECC83 - A New 25W Audio Output Pentode
    
Extras ▼

 

The ECC83 copy from Zaerix was made in the German Democratic Rebublic, what we used to call East Germany, and imported into the UK.
The Mullard ECC83 is high impedance amplifier triode was designed specifically for audio use and has a high amplification factor of 100.
The thin glass tube envelope is 21 mm in diameter, and excluding the B9A base pins is 48 mm tall.
References: Data-sheet, 3002 & 1040. Type ECC83 was first introduced in 1954. See also 1954 adverts.

 

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
ra
gm
6.3
0.3
250
-2
1.2
62.5K
1.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 03, 2013.
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