RF or even switching transistors like the 2N2222 can be used in this circuit. The capacitors are ceramic and the frequency is determined by the crystal.
This circuit can be used with 3 receivers and is intended for low frequencies (medium wave range). We...
Using two of the 4 NAND gates of the integrated 4001, the circuit in the figure activates the...
This circuit allows you to superimpose the signal from the microphone to that of the music with...