When audio mixing consoles went digital
Launching one of the first digital mixing consoles at IBC (International Broadcasters Convention) in Brighton one year the digital processing card stopped working. Designer of said prototype card had decided to visit relatives in Scotland as he was not required at the show. Called back the 500 miles he dutifully drove down over night. The cards were 6U high and made using a new automated solder wrap system using fine wire that was wrapped and soldered directly onto the sockets of lots and lots of DIL ICs. Valiant young engineer gets out the oscilloscope, clips on probe ground wire and shorts out the 5V supply wire creating a wonderful plum of smoke all around the card. Shock turned to applause and the sales team are left to fake it with an audio console that was processing no audio.