This Texas Instruments circuit is from the 80's. However, it can be implemented with modern operating systems. The power supply must be symmetrical.
The L1 coil is formed by 5 turns of 16 AWG wire in the form of 4 cm without core. Capacitors are...
This circuit that can be assembled in an “aspirin box” was found in the Radio Electronics magazine of...
We found this circuit in a 1973 publication. The circuit lets frequencies below 480 kHz pass...