Hacker News new | ask | show | jobs
by numpad0 2177 days ago
NASA Apollo 13 team did intentionally brick S-IVB upperstage radio downlink so that frequency auto-calibration goes way off so it won’t interfere with the rescue operation.

That auto-calibration system probably was a series of analog opamp circuits, so if that’s the case they managed to OTA brick a complex enough analog radio.