This circuit was found in a Hands On Electronics from the 90s. The circuit does not need a symmetrical power source. The signals with which it operates are alternating.
This symmetrical 1.2 to 35 V source was found in a 1994 documentation. The integrated circuits are...
Found in a 90s Elektor, this mixer makes use of integrated circuits of the time. The supply must be...
This amplifier is specifically designed for portable radio and recorders with a 4 ohms load....