The purpose of this circuit is to measure the resistance of an antenna at the resonant frequency. The circuit is from an old American documentation for hams.
The circuit we use makes use of Linear Technology's LT3080 (www.linear.com) which consists of a...
This circuit was obtained from an American 1980s documentation. The frequency depends on the...
This sensitive circuit produces na outpu signal when a body is detected by the sensor. The circuit...