This QST circuit generates 4 frequency signals according to the crystals used. Transistors admit equivalents although the indicated types can still be found with some ease.
The circuit show and simulated in the MultiSIM BLUE is a high pass filter using a 741 operational...
September 2017 - Panasonic Dy2L TVS diodes for network applications, security, medical equipment,...
This simple circuit was found in an English magazine that no longer exists, January 1970 issue. This...