Coronado 686B tube radio repair

This video documents the detailed repair process of a 1936 Coronado 686B, a 6-tube AM shortwave and police band superheterodyne radio. The radio, approximately 90 years old, was found in reasonably good physical condition but with significant mouse damage and electrical issues. We undertake a systematic repair to restore it to working order. Summary The repair of the 1936 Coronado 686B radio demonstrates the challenges and rewards of working on vintage electronics. Despite significant rodent damage and electrical faults, careful cleaning, wiring repair, component replacement, and testing brought the radio back to life, delivering impressive performance. The project underscores the importance of detailed inspection, methodical troubleshooting, and respecting the nuances of antique equipment.