M907

This document is a schematic diagram for a "DIODE CLAMP M907" circuit, created by Digital Equipment Corporation and copyrighted in 1968 (Revision B).

The schematic details a circuit featuring:

• 18 Diodes (D1-D18): Identified as D664, which corresponds to an IN3606 diode. These are arranged in two main banks, connecting various labeled points (A1 through T1, and C2 through V2) to a common line.
• 4 Resistors: Two 330 Ohm (R2, R4) and two 750 Ohm (R1, R3) resistors.
• 2 Capacitors: One 6.8 µF, 35V tantalum capacitor (C1) and one 0.01 µF, 100V disc capacitor (C2).

The document states that the schematic is "furnished only for test and maintenance purposes" and that the "circuits are proprietary." It also includes a parts list with specific part numbers for each component, along with drawing and approval dates from August and September 1968. The circuit includes a +5V supply connection (A2) and a ground reference.