Negative Level Amplifier W600

This document is a technical schematic and parts list for the W600 Negative Level Amplifier, dated July 30, 1964. It includes component reference designations (transistors Q1-Q3, resistors R1-R12, and diodes D1-D12) with their respective part numbers, values, and specifications, as well as a transistor and diode conversion chart. The schematic is intended for test and maintenance purposes.