Using the integrated circuit 723 we found this power supply in an article in the magazine Radio Electronics from August 1971. The transistor may be a BD136 equipped with a heat sink.
This sensitive multi-circuit and component prover uses two transistors and has a switch position where...
This video game is another of the AY3 series with the AY3-3606 integrated circuit. The circuit was found...
This power stage with two transistors was found in Radio Electronics magazine from October 1963....