Found in American documentation from the 90's, this JFET stage has an input impedance of 500 M ohms. Bipolar transistors are general purpose types and the FET supports an equivalent.
This TTL divider divide by 0 to 9 the frequency of a signal applied to its input. Maximum...
This circuit was found in a 1980s Intersil documentation. The integrated circuit used is not...
We found this circuit in the January 1992 issue of Radio Electronics magazine. The circuit...