This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time and are not given information about the driver transformer. Note the high supply voltage.
This circuit is from General Electric documentation from 1965. The SCR and unijunction transistor may be...
This simple timer uses one of the six inverter ports on a CMOS integrated circuit. Rx and Cx...
What this circuit does is to stretch a pulse, increasing its duration. The integrated circuit is...