Surplus aircraft communication control unit, marked C-6533/ARC. This 28 VDC panel is used in aircraft crew communication and intercom systems to provide radio selection, receiver monitoring, microphone/headset audio control, and communications between crew stations. It is commonly associated with military helicopter communications systems, including UH-60 Black Hawk applications.

• Manufacturer / alternate identification: Andrea Systems A301-1

• Part number: C-6533/ARC

• Type: Aircraft communication control / intercom control panel

• Electrical input: 28 VDC nominal

• Condition: Surplus / as removed / untested

• Included: Exact unit shown only; no rack, mating connector, harness, microphone, headset, radios, test equipment, manuals, or certification unless specifically pictured

Unit is offered for repair, restoration, simulator, training, government/military support, or other compatible aviation application. Buyer must verify the exact part number, configuration, aircraft applicability, connector compatibility, and serviceability before installation or purchase.