The L1 coil is formed by 4 turns of wire 20 in the form of 0.5 to 0.6 cm without core. The circuit is from an 80's documentation. The range reaches a few tens of meters.
Using 5 V relays, this circuit can be used as a control shield for microcontrollers. The circuit uses...
This circuit was obtained in Linear Technology documentation from 1993. The circuit provides 3.3 V and...
This oscillator that excites 3 LEDs sequentially is also called a circle oscillator. The frequency...