discharge tube (unprepared)
Date: 1900-1930
Inventory Number: 2008-1-0074
Classification: Discharge Tube
Dimensions:62.5 × 7 × 7 cm (24 5/8 × 2 3/4 × 2 3/4 in.)
Description:
A long, narrow glass tube with a bulb in the middle and two smaller bulbs at each end. It has identical small needle electrodes at each end connected to loop contacts on the outside. It also has a thin, open side tube near one end, at about a 20-degree angle to the main tube.