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12BA6

Sensibly equivalent to:
CV1928 HF93
See also:
Brimar 6BE6, 6BA6, 6AT6, 6AQ5 & 6X4 12BE6, 12BA6, 12AT6, 35L6GT, 35W4, 6AK6, 1S5, 1U5, 3S4, 3V4, 1R5 & 1T4 Advert - Brimar 6BH6, 12AH8, 6BA6, 6AT6, 6V6GT, 12BA6, 12AT6 & 12A6 Advert
    
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The 12BA6 is described by Brimar as a variable μ pentode for use at HF within AC/DC receivers. Most probably as RF amplifiers.
The reverse of the envelope. The suppressor grid can be seen within the anode.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 47 mm long.
References: Datasheet & 1040. Type 12BA6 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
gm
6.3
0.3
250
100
-1
11
4.4
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 25, 2013.
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