Full frequency feedback, short
Tractor beam high pitched steady laser type, can be used for science, technology instrument or deep space
Solar flare or gamma ray burst, wavy tonal metallic wash
Buzz tone phases in sharply x2
Chattering high tone with low blip at end
Geiger counter in use. Vintage recording.
Constant mid tone modulating quickly
High pitch tone phasing in and out and modulating
Electric geiger counter ticking fast.