This configuration was found in an English magazine from 1965. It is valid for any junction FET. The input impedance is 5.5 M ohm higher than conventional stages.
We found this oscillator in a publication for radio amateurs from the 70s. The circuit generates...
This low displacement circuit was found in American documentation from the 90s. Operational...
The circuit shown in the figure was suggested by Maxim (www.maxim-ic.com) based on the DS2786B...