These are Skywalker Sound sound effects of sparks chirping, clicking, hissing, etc. Most of these sounds / sound effect clusters/combos were probably designed by Ben Burtt.
One of the spark chirps, SKYWALKER, ELECTRICITY - SINGLE SPARK CHIRP 02 (see first audio sample), debuted in Star Wars: Episode V - The Empire Strikes Back (1980); possibly created by Ben Burtt.
Links:
https://soundeffects.fandom.com/wiki/SKYWALKER,_ELECTRICITY_-_BIG_VARIOUS_SPARKINGS#Audio_Samples
SKYWALKER, ELECTRICITY - BIG VARIOUS SPARKINGS has been suggested to play 2 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
