This circuit is from the 1977 GE semiconductor manual. The components used are uncommon today.
The circuit shown in the figure opposite, operates with 7-segment common anode displays, requiring in...
Found in a 1990s US publication, this alarm circuit detects when a light beam is interrupted. Optical...
In this charger the current is limited by the incandescent lamp. Lamps from 40 to 100 W can be...