How did the Apollo astronauts communicate from Moon orbit? They used a 20-Watt Traveling Wave Tube Amplifier. Let's see what's inside this 32-pound box.


@LaF0rge As it happens, my hangar landlord Jim was in charge of developing the communications for Apollo missions: voice, telemetry, and TV.
Sign in to participate in the conversation – a Fediverse instance for & by the Chaos community