This timing circuit was found in old documentation. The technology is CMOS. The supply can be made with voltages from 3 to 12 V. The time depends on R1 and C1.
This simple test circuit was found in the April 1983 issue of Radio Electronics magazine. The...
This circuit for 6 lamps was found in old American documentation. The supply is of high voltage...
This sensitive three-transistor circuit was found in Electronics Now magazine and is...