This circuit was obtained from the September 1977 issue of Radio Electronics magazine. The circuit is based entirely on transistors and two SCRs. The power supply with the inclusion of a battery is given.
This circuit is from old documentation. The operational amplifier is uncommon nowadays. The...
This memory flip-flop must be powered by 5V voltage. The circuit stores 1 bit. ...
This simple preamplifier was published in Radio Electronics magazine in February 1958. The battery...