Inside of a very old fridge-freezer recorded with a cheap digital voice-recorder.
Power switched off at 70 seconds and back on at 120 seconds
[ noise reduction has …
SpinDown. Usable backwards, and at different speeds , (e.g. half-speed).
Was part of freesound #246175 by Jimimod ... http://www.freesound.org/people/JimiMod/sounds/246175/
power up - power down