This circuit makes use of unusual components today. We found it in General Electric documentation from the 1980s. The circuit operates with modulated optical signals.
This simple circuit was found in an English magazine that no longer exists, January 1970 issue. This...
Found in a 90’s Electronic Design, this circuit generates stable signals in frequency given by the...
This circuit was found in Philips documentation from 1965. No information was given about the...