Crystal detector
A crystal detector is an electronic component used in some early 20th century radio receivers. It consists of a piece of crystalline mineral that rectifies an alternating current radio signal.
A crystal detector is an electronic component used in some early 20th century radio receivers. It consists of a piece of crystalline mineral that rectifies an alternating current radio signal.
A crystal detector is an electronic component used in some early 20th century radio receivers. It consists of a piece of crystalline mineral that rectifies an alternating current radio signal.
Source: Wikipedia "Crystal detector" · CC BY-SA 4.0
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