This circuit, suggested by an Electronics World of 1969, keeps a blinking LED for a while when a power outage occurs. Time depends on capacitor C1.
This circuit allows the division of the frequency generated by an oscillator with the 4069 by two,...
This circuit for igniting gas flames was found in a 1967 Electronic Design. The SCR firing device is a...
This circuit, which appears on our website in different versions, uses an integrated VU which is...