Electric discharges, Tesla coil:
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Electrical discharge surge
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Electric sparks
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Wall switch
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Tesla coil, Electric discharges
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Turn off the appliance,, Turn on
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Low frequency rumble
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Electricity, Current, discharge
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Low frequency electric drone, movement
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Start up, shutdown,, Electronic energy
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Toggle switch, Small switch
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Low Frequency Electric Drone
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Button click
★★★★★