This commercial transistor radio was manufactured by RCA in the 1960s. The circuit has only 4 transistors and is powered by a voltage of 9 V with an audio power of 20mW.
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....