6J6

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The 6J6  (European: ECC91) (P/N 154-032, 154-0032-00) is a high-frequency dual triode vacuum tube 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.

With only 7 pins available, the two triode systems need to share a common cathode connection.

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Used in

Some instruments using part 6J6

Instrument Manufacturer Class Model Description Introduced
104 Tektronix Pulse generator 104 Square wave generator / voltage calibrator 1948
104A Tektronix Pulse generator 104A Square wave generator / voltage calibrator 1950
161 Tektronix Plug-in 161 Pulse Generator Module 1952
511 Tektronix Oscilloscope 511 10 MHz Tube scope
First Tektronix oscilloscope
1947
511A Tektronix Oscilloscope 511A 10 MHz Tube scope 1948
512 Tektronix Oscilloscope 512 Early 2 MHz scope 1948
517 Tektronix Oscilloscope 517 50 MHz scope 1951

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