Electric discharges, Jacob’s ladder:
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Electric discharges, Tesla coil
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Low frequency rumble
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Turn off the appliance,, Turn on
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Switch
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Small electric motor
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Small switch, toggle switch
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Electricity, discharge, Current
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Electrical discharge surge
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Electric discharges, Jacob’s ladder
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Movement, Low frequency electric drone
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Electric sparks
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Multichannel switch
★★★★★