Focus Coil Drawing 1217084_REV H.pdf

This document is a technical specification and engineering drawing for a CGL (Cathode Glow Lamp) Tube Focus assembly, designated drawing number D56232, revision I217084. The specification establishes detailed requirements for the design, manufacturing, testing, and quality assurance of a tube focus coil assembly used in electronic equipment.

The specification defines comprehensive technical requirements including normal operating ratings with maximum resistance of 2.6 ohms at 25°C, maximum air pressure of 1.6 PSI, and coil weight not exceeding 168 grams. Environmental requirements specify operational capability from -55°C to +125°C and storage capability from -65°C to +175°C. The document mandates extensive testing protocols covering functional requirements, interface requirements, and performance verification tests including dielectric testing at 1650 volts minimum. Quality assurance provisions require 100% control of all coils by the seller with mandatory inspection and testing per detailed procedures. The specification includes specific approved sources for component supply (Thomson Focusing Coil and various connector manufacturers identified by cage codes), design and construction requirements for the coil assembly with precise dimensional tolerances, and detailed performance characteristics including impedance and mechanical specifications. Critical requirements address coil mounting orientation, tuning mechanism assembly with mechanical counters, and assembly configuration using specific fasteners and materials. The document prohibits disconnection of the tube focus coil cable and establishes absolute weight limits of 16 pounds for the assembly.