A reel-to-reel tapecorder with the record switch on. Time has not been kind to the device, and now a loud sine wave pulses through the speakers when recording with it.
The last seconds of air in a pipe organ, played with the bellows switched off. Recorded to a camera on a sennheiser ke66/k6 in oriel college chapel, oxford.
A videotronic super 8mm repeater projector having it's blub flipped on, then the film started. It is then switched off in reverse order. Recorded with a cad gxl2200 microphone.