FOUR FLIP-FLOPS B214

This document is a schematic diagram illustrating the circuit for "FOUR FLIP-FLOPS B214". It features nine transistors (Q1-Q9), numerous diodes (D1-D44), resistors (R1-R32), and one capacitor (C1). Key component specifications are provided, indicating that resistors are generally 1/4W, 5%, diodes are D662 (EIA equivalent IN645) and D664 (EIA equivalent IN3606), and transistors are 2N4258. The schematic includes power supply connections for +10V, -3V, -15V, and ground. A note at the top states that the schematic is proprietary, for test and maintenance purposes only, and copyrighted by Digital Equipment Corporation in 1967. The drawing was created on June 5, 1967.