This converter converts a signal in the 200 kHz to 3.8 MHz band into frequency signals that can be tuned on a 3.5 MHz receiver. Coil data not provided.
This passive circuit was found in the March 1995 issue of Elexctonics Now magazine. The circuit is for...
Found in old American documentation, this circuit makes use of operational amplifiers from the 70s...
We found this simple password logic circuit using LEDs and keys, with no active component, in a...