155-0217-00

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The Tektronix M55D  (P/N 155-0216-00,155-0217-00) is a variable-gain transconductance amplifier monolithic integrated circuit in a 16-pin DIP, designed by Roy Hayes (and possibly Einar Traa, see data sheet).

Block diagram

It is a successor to the 155-0032-00 (M55 aka M055). The 155-0217-00 successor of the 155-0216-00 appears to have mostly identical data.

Data sheets

Used in

  • 335
  • 475 (U520 in the Trigger Generator circuit)
  • 7D20 (A4U710, A4U740: 155-0216-00)
  • FG504 (U770 in trigger pick-off) from SN B057720

Some instruments using part 155-0217-00

Instrument Manufacturer Class Model Description Introduced
335 Sony/Tektronix Oscilloscope 335 Compact dual-trace 35 MHz oscilloscope 1976
475 Tektronix Oscilloscope 475 Portable 200 MHz dual-trace scope 1972
7D20 Tektronix Plug-in 7D20 70 MHz dual-channel digitizer 1982
FG504 Tektronix Plug-in FG504 40 MHz function generator 1976

Pictures