This circuit is from a 1967 documentation. It consists of a sensor for memories used at the time. It can be made with modern equivalent transistors. Note the 4 V symmetrical power source.
The first configuration we show is a flip-flop that can be triggered using two push buttons of the...
This circuit is used for cable checking. We found it in the Radio Electronics magazine of December...
This interesting circuit causes a set of LEDs to flash at a speed controlled by the CI1 in an...