Noun
English Wikipedia has an article on:cohererWikipedia
coherer (plural coherers)
(physics) A detector of radio waves used in very early radio receivers.
At that time, the word ' coherer ', coined by Lodge, was used in the English-speaking world for Hertzian wave receivers or detectors. Source: Internet
Bose planned to "perfect his coherer", but never thought of patenting it. Source: Internet
Consequently, the coherer cannot be relied upon as a calling-up apparatus. Source: Internet
In the summer of 1894, he built a storm alarm made up of a battery, a coherer (an early detector that changed resistance when exposed to radio waves), and an electric bell, which went off if there was lightning. Source: Internet
On the receiver side, Marconi replaced the spark gap with a metal powder coherer, a detector developed by Edouard Branly and other experimenters. Source: Internet
The transmitter is at center, the coherer receiver below it, the pole supporting the wire antenna is visible at top. Source: Internet