Using the LM358 from Texas Instruments, this circuit uses LED indicators and can be powered with voltages of 5V or according to the analyzed logic.
This experimental drone circuit was published in a Radio Electronics magazine article from...
This circuit causes an LED to blink from the 1.5 V supply thanks to the use of a voltage doubler. The...
This circuit consists of a traditional version of dimmer with triac and was found in a 2000...