This circuit was found in General Electric documentation from the 1980s. The circuit is intended to receive 50 kHz modulated optical signals. The components support modern equivalents.
This is one of the many anti-deboucer circuits the reader can find on this site. The base is TTL...
The idea of wearables is not new and does not necessarily need to be implemented with...
General Electric suggests this circuit in a 1980s documentation. The operational of the time is...