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 circuit for timing small loads was found in a 1964 General Electric documentation....
Instead of LED bulbs, LEDs with a series 470 ohm 1k resistor can be used in this 80's circuit....
We found this circuit in an English publication from the 1980s. The circuit uses current...