Office fax-printer beeps. HP LaserJet 1536dnf MFP. Loud background noise is ventilation. XY-Stereo
A stretched out slinky with a contact mic adhered to one end being struck, resulting in strange laser-like "zwap" sounds ...
Turning a television on and off
Powering down your futuristic vehicle... or robot? I dunno. This is a low freq. version.
Film rolling through 8mm Movie Camera with magazine cover off. Recorded on Tascam DR-40
An external HDD is turned on and the drive spins up to speed. Recorded on a Zoom H4n. Note: You ...
A Hitachi hard drive manufactured in 2006 close up; spin up, and spin down. This drive has 3 platters. (HDT725050VLAT80)
Electronic buzzing sound generated by a noisy computer power supply.