This document is a technical schematic for a power supply circuit designed by Digital Equipment Corporation (dated 1969). The circuit takes an input of 115V AC (50/60 Hz) and provides two outputs: a +6.5V DC supply and a 9V AC supply. The schematic includes a transformer (T1), a diode pack (D1) for rectification, a 5-ohm 25W resistor (R1), a 18000µF 10V DC capacitor (C1), and a 1/2A slow-blow fuse (F1) for protection. A complete parts list with specific component descriptions and part numbers is also provided.
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