This interesting circuit from Radio Elecronics from October 1965 shows a flip-flop or bistable with SCRs simulated by bipolar transistors.
We found this shield circuit in a 1991 technical documentation. The phototransistor can be...
January 2017 - Texas Instruments is making available through Mouser Electronics the new Buck...
The figure shows how to obtain a locking relay for an alarm circuit with sensors in series and in...