This is the circuit of a commercial radio sold in Japan in the 1960s. The IF is 455 kHz, and the supply is made with a voltage of 9 V. The radio receives stations in the medium wave range.
The LM12 integrated circuit consists of a high-power operating system capable of providing 100 W of...
This power control from Motorola's 1971 SCR Power Control Fudamentals can control full wave loads...
This circuit was found in Maxim's documentation from the 90's. The circuit provides 12 V x 120 mA....