5N20.40 Tesla Coil
A Tesla coil is used to demonstrate phenomena associated with very high voltages.
Draw sparks with a grounded wire and also light discharge or florescent tubes just held in your hand. For the brave, wrap your finger in aluminum foil and draw sparks to your finger.
Location: Coil: M1-1; Transformer: H2-5; Neon Tubes: K6-3