W602

This document is a proprietary schematic diagram for a Digital Equipment Corporation (DEC) Bipolar R Level Amplifier, model W602, copyrighted in 1965.

It is provided for test and maintenance purposes only.

The schematic details an electronic circuit featuring:

• 12 Transistors (Q1-Q12, types DEC6534D and DEC30098)
• 25 Diodes (D1-D25, types D664 and D662)
• 35 Resistors (R1-R35, various values, typically 1/4W 5%)
• 3 Capacitors (C1-C3, 27 MMF 100V 5% MICA)

The circuit is designed to operate with power rails of +10V, -15V, and Ground. The document also includes:

• A comprehensive parts list detailing component reference designations, descriptions, and DEC part numbers.
• A transistor and diode conversion chart cross-referencing DEC part numbers with their EIA equivalents.
• Revision information, indicating the document is Revision A.