Found in an Elektor from the 90s, this circuit converts signals from the 280 kHz band to 516 kHz, making it possible to tune them in common AM radios. The components used are from that time.
This circuit was proposed by a 1965 Electronic Design. Its purpose is to widen the line transients...
The input of this regulator can be between 7 and 12 V and the output is 5 V. The circuit is from...
This circuit was found in the December 1983 issue of Radio Electronics magazine. The sensor is an...