Using the LM3909 this circuit was found in the January 1992 issue of Radio Electronics magazine. Resistor R1 should be chosen according to the table given next to the diagram.
July 2017 - Mouser Electronics already has in stock the new SCRs from the SJxx40x high temperature series from...
This circuit was found in a 1987 magazine. It generates signals in a range from 100 kHz to 10 MHz,...
This control circuit for direct current motors uses a 741 and an operational one of unusual power...