Using the 723 integrated circuit, this circuit was obtained from an article in the August 1971 Radio Electronics magazine. Transistor Q1 can be the BD136 and the 2N3055 must be equipped with a heat sink.
Using the 723 integrated circuit, this circuit was obtained from an article in the August 1971 Radio Electronics magazine. Transistor Q1 can be the BD136 and the 2N3055 must be equipped with a heat sink.