Found in a Popular Electronics from the 90s, this circuit uses common components with several operational options, including the use of an optocoupler that allows its application in a shield.
This inverter can reach a power of 300 W depending on the transformer used. In this case, a...
This circuit causes an instrument needle to oscillate to signal an event. The circuit is powered by...
This circuit converts signals from the 350 kHz to 500 kHz longwave (VLF) band to the 4.35 to 4.6...