This circuit was found in a 1970s General Electric documentation. This circuit already used an emitting LED. The circuit operates at frequencies from 50 Hz to 50 kHz with short pulses
This power source was found in documentation from the 1970s. The components are from the time, and...
The circuit shown in the figure can be used on a data transfer bus using an appropriate family...
This circuit was obtained from an English magazine from 1977. The magazine no longer exists, but...