ultranoise about 14-15 kHz by Audacity
I found an old fan and rubbed a straw across the front of the fan.
Short clip of noise and glitch which appeared in a phone call. My internet connection going through the same box ...
Sounds like a phone ringing. This sample was created by the Malex Media Network for the Malex Minute project. MalexMinute.com
The sound of the phone in an Italian Bank office
I found that a good way to get cool electrical sounds is with any commercial bug zapper.
Single arc of electricity going up a Jacob's Ladder. This was taken from the audio track of a video shoot. ...
Winding a small clock. Deep and clunky.