Found in a 80s American documentation, this circuit pulses a lamp for optical relay tests. The circuit can be modified to trigger a high brightness white LED.
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...