2304. Vintage Swan 240 SSB Transceiver Original Operation Manual ? Rare Ham Radio Guide. Some wear on the cover but overall in great condition. Please look at the pictures. Always consider offers. The Swan Model 240 is a single sideband, suppressed carrier transceiver for amateur radio operators. This manual provides detailed engineering, operational, and maintenance instructions to keep the transceiver in optimal working condition. It includes schematics, step-by-step operational procedures, and maintenance guidelines, making it an essential resource for both novice and experienced operators. This manual is perfect for anyone looking to understand the technical aspects of the Swan 240 transceiver and ensure its longevity in service.