This is a commercial circuit from the year 1958. Transistors are germanium types and transformers and coils are hard to fild today. The circuit is destinated to the reception of medium wave stations.
This 500 MHz oscillator has an output power of 1 W when powered by a 20 V source. The circuit was...
Is already availablefrom Mouser Electronics is the new reflective B5W-L01 sensor for convergent...
This sensitive motion sensor with inductive sensor was found in a 90s Elektor. The circuit uses only...