This optical counter was found in a 1964 Electronics Design. It makes use of an uncommon optocoupler today, using emission lamp and a phototransistor.
The 8038 integrated circuit consists of a function generator with outputs of three waveforms. It...
New Series is Supported by START to Optimize Software Support and Includes Rich Features in 4 KB...
This two-transistor circuit was found in American documentation from the 1990s. The circuit can use...