The 6AS7/6AS7G  (P/N 154-020, 154-0020-00) is a dual power triode vacuum tube with an octal base. It is similar to the 6080.

6AS7G Vacuum Tube

Used in

It is used as the output device in the regulated power supplies of several Tektronix instruments, including the 160, 506, 511A, 512, 513, 517, 561, 561A, 561S, 564.

Some instruments using part 6AS7

Instrument Manufacturer Class Model Description Introduced
160 Tektronix Oscilloscope 160 Modular Oscilloscope 1952
506 Tektronix Oscilloscope 506 20 MHz scope 1964
511A Tektronix Oscilloscope 511A 10 MHz Tube scope 1948
512 Tektronix Oscilloscope 512 Early 2 MHz scope 1948
513 Tektronix Oscilloscope 513 18 MHz scope 1950
517 Tektronix Oscilloscope 517 50 MHz scope 1951
524 Tektronix Oscilloscope 524AD TV waveform monitoring scope 1953
561 Tektronix Oscilloscope 561 10(4) MHz "General Purpose Scope" 1961
561A Tektronix Oscilloscope 561A 10(4) MHz "General Purpose Scope" 1962
564 Tektronix Oscilloscope 564 Split-Screen Storage Scope 1962

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