Lodge point contact coherer

Description

Lodge point contact coherer, an early form of coherer made of two brass rods in light contact, mounted on a glass insulating rod on a rectangular wooden base, developed two years after Heinrich Hertz demonstrated transmission using radio waves, used by Sir Olver Lodge, maker unknown, England, c. 1890

Museum reference

T.1931.344

Collection

Industry and Commerce : Communications

Object name

Coherer

Production information

Unknown
England, Northern Europe

Date

c. 1890

Materials

Brass, Brass, Glass, Wood, Varnish, Fabric

Physical description

Brass rods, glass insulating rod

Associations

Previous owner: Lodge, Oliver, Sir

Exhibitions

• Shaping Our World (29 Jul 2011 - 03 Aug 2014)
  National Museum of Scotland