Expansion Cloud Chamber Spark Counter Pith Ball Electrometer
Kelvin Generator Leyden Jars Bohnenberger Machine Jacob's Ladder
Gold Leaf Electroscope Nairn Generator Graphite Conductor Electroscope
Leyden Jar Electrophorus Spinthariscope Woodward Machine
Electroscope Crookes Tube (Version 1) Crookes Tube (Version 2) Lodestone