Elektrisk æg

Danish Instrument Inventory text:

Discharge tube. Aurora. Brass base Dia160 with brass stop cock and threads for connection to vacuum pump. Egg-shaped glass Dia135 H175 with electrodes ending inside with 2 brass spheres. Brass collar at the top with the upper electrode passing through leather seal and ending in a ring to facilitate adjustment of the distance between the 2 brass spheres. Overall H500. Vertical brass scale, graduated in inches at the top, indicating position of the ring.Not signedc1800 (g)

• Category: Electricity
• Hauch number: K135
• Inventory number: 7470
• Danish Instrument Inventory number: 2096

• Hauch references:
• Begynd.grund: §555
• Cabinet 1: 0

• Literature:
• The King George III Collection: L108

• Watson(1752)