Electronic monotony
Electronic monotony
Electronic monotony
General purpose electrical radiation
Wimhurst machine
Radion interference
Geiger counter
Electronic monotony
Electronic monotony
Electronic monotony
Background static to echoes from the moon
Refrigerator hum - switch on & off
Refrigerator hum - switch on & off
Deep-freeze motor hum
Refrigerator hum - switch off
Refrigerator hum - switch off
Strip lighting hum
General purpose electrical radiation
Television sound interference caused by vacuum cleaner
Wimshurst Machine operating
Radio Interference. (Radiation)
Geiger Counter operating
Simulated Lightning. (Spot Effect.)
Simulated Lightning. (Spot Effect.)
Simulated Lightning. (Spot Effect.)
Simulated Lightning. (Spot Effect.)
Simulated Lightning. (Spot Effect.)
