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The Tektronix M112  (P/N 155-0117-00) is a readout control monolithic integrated circuit ("knob readout counter") in a 40-pin DIP.

Used in

  • 7L5 S/N <B060000 (U830; mis-labeled 155-0177-00 in diagram); S/N B060000+ use 155-0198-00

Some instruments using part 155-0117-00

Instrument Manufacturer Class Model Description Introduced
7L5 Tektronix Plug-in 7L5 5 MHz Spectrum Analyzer 1976