Up for sale is an original U.S. Navy Bureau of Ships (BuShips) Type CQC-20409 Power Supply Unit, manufactured by the Admiral Corporation in Chicago, Illinois. This unit was built as the primary AC power supply for the Model MAR naval radio equipment system.

​Manufacturer: Admiral Corporation (Contract N5sr-759)

​Model / Type: CQC-20409 (Serial No. 172)

​Markings & Acceptance: Accepted by Navy in March 1946 (MAR - 46 with official anchor stamp); base interior stamped MFP APR. 1946 (Moisture and Fungus Proofing).

​Electrical Specs: 115V AC, 1 Phase, 60 Cycles.

​Condition: Excellent cosmetic and physical condition. The interior is exceptionally clean with intact internal rubber shock mounts, factory laced wiring harness, original Sprague can capacitors, transformers, and relays. The exterior steel housing shows light scuffing and honest vintage wear consistent with age, with both spring latches fully functional. Sold untested for display, restoration, or vintage military radio collection.