Turning on a radio then searching for a radio station
Large vent turn on and run then a clunky off 1
Large vent turn on and run then a clunky off 2
Turning on and turning off a chop saw
Turning on a chop saw, cut wood and turn off
Cessna 172 Skyhawk interior cockpit turn on electric hum turn off
Computer printer, HP Deskjet D1470, switched on.
Large yacht - turn on and sink