Found in a RE Experimenter Handbook from the 90s, this circuit is intended for the use of LEDs in a flashing system for Christmas trees. The circuit can be expanded
This circuit was obtained in Radio Electronics from the 90s. The integrated circuit is uncommon...
This 4-digit digital clock for hours and minutes with CMOS integrated circuits was found in a 1995...
This circuit is indicated to operation with low intensity sources such as electret microphones and...