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1A6E

 
    
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The 1A6E is a battery heptode frequency changer (pentagrid converter). The standard 1A6 has a 2.0 Volt filament for accumulator based LT receivers. The is E variant differs in that it is designed for use on dry cells and has a nominal 1.4 Volt filament.
Thanks to Mark from Vintage-parts for sending this image.
The classic envelope is  mm in diameter, and excluding the UX6 base pins is  mm tall.
Reference: 1043. Type 1A6E was first introduced in 1940.

 

Pin Connections
UX6
1
2
3
4
5
6
tc
f+
a
g2
g1
g3,g5
f-
g4

 

Absolute Maximum Operating Conditions
Heptode
Vh
Ah
Va
Vs
Vg
mAa
mAs
1.4
0.06
135
67.0
-3.0
1.7
2.5
Updated March 20, 2017.
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