We found this circuit in the Electronics Experimenter Handbook magazine from 1993. L1 has 2 = 2 turns of 28 or 30 wire in the shape of 0.5 cm without core. The range reaches a few tens of meters.
Fully-Certified Software Development Kit Leverages Hardware-Based Calculations to Create Fast,...
This transmitter for modulated infrared remote control was found in documentation from the 90s....
This game aims to make you discover which is the combination of activated switches that make the...