SPT - 1972

November-December 1972 issue of the Society of Photo-Technologists (SPT) Service Notes, covering pages 483 through 498. This technical resource presents comprehensive information on the maintenance and repair of Polaroid photographic equipment. The Polaroid general information section addresses parts availability policies and provides technical contacts for shutter and converter repairs. A detailed visual checkout and mechanical repair guide covers shutter housing disassembly procedures, inspection of the magnet and bobbin assembly, blade mechanisms, and spring tension adjustments. Multiple Color Pack models including the 100, 102, 220, 230, 240, 250, 340, 350 and the 103, 104, 210, 125, 320, 330 series are documented with their respective baseplate assemblies and battery system variations. Technical specifications include switch operations, electrical contact configurations, and shutter speed adjustment procedures. The document features a complete section on Polaroid bellows replacement, with step-by-step instructions for component access and battery interlock modification. A dedicated CP-11 flash cube holder repair section describes disassembly techniques designed to preserve connector strips and internal components during service procedures.