M700

This document is a schematic diagram for the Manual Timing Generator M700, designed by Digital Equipment Corporation (DEC) and copyrighted in 1967. Its stated purpose is for test and maintenance, with the circuits being proprietary.

The generator's design primarily utilizes early integrated circuits, specifically DEC7474 (E1) and DEC7400 series logic gates (E2-E8). It also incorporates discrete components including various transistors (DEC3009B, DEC6534B), diodes (D664), resistors, and capacitors.

Key features and connections include:

• An "AS FILTER INPUT" and other control inputs.
• Multiple outputs such as MFTP 2, MFTP 1, MFTS O, RUN (O), and RESTART.
• Power rails at +5V (for ICs, with Pin 14) and +3V, with a common ground (Pin 7 for ICs).
• A "POWER CLEAR" line.

The schematic includes general component specifications for unmarked parts (e.g., resistors are 1/4W, 5%; capacitors are .01 MFD, 100V, 20%) and a transistor & diode conversion chart. It also references an associated "PARTS LIST A-PL-M700-0-0".