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93 bytes added ,  4 November 2023
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}} with a 6.3 V, 0.45 A heater.   
}} with a 6.3 V, 0.45 A heater.   


Introduced in 1939/1940, it was one of the earliest tubes with a miniature 7-pin [[B7G base]].
Introduced in 1939/1940, it was one of the earliest tubes with a miniature 7-pin [[B7G base]].
 
With only 7 pins available, the two triode systems need to share a common cathode connection.


==Links==
==Links==

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