Found in American documentation from the 1980s, this circuit makes use of components of the time, which are uncommon today. The circuit detects the approach using a sensor formed by metal plates.
This circuit is used in the analog part of the telephone lines. The same circuit can directly...
In this project, from a Japanese magazine of 1973, only one channel of a stereo amplifier of 20 W...
Molex Sealed Industrial USB Solutions achieve superior signal integrity in harsh factory and...