This 13.6 V power supply with 8 A output was suggested by Texas Instruments in the documentation of the 90s. Power transistors must be equipped with good heat sinks.
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....