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155-0126-00 block diagram (click to enlarge)

The Tektronix M121  (P/N 155-0126-00) is a trigger source selector and P-P auto amplifier monolithic integrated circuit in a 20-pin DIP, designed by Art Metz on the SHF2 process.


Used in

Some instruments using part 155-0126-00

Instrument Manufacturer Class Model Description Introduced
7B50A Tektronix Plug-in 7B50A 100 MHz timebase 1976
7B80 Tektronix Plug-in 7B80 400 MHz timebase 1976
7B81P Tektronix Plug-in 7B81P programmable timebase (?)
7B85 Tektronix Plug-in 7B85 400 MHz delaying timebase 1976
7B87 Tektronix Plug-in 7B87 400 MHz time base for 7854 1981
7B90P Tektronix Plug-in 7B90P 400 MHz programmable timebase 1978