This circuit was found in an American documentation from the 90's. The transistor is a general purpose one. The circuit oscillates well between 12 and 30 MHz with the indicated components.
This circuit is indicated for measurement bridges as a null detector, thanks to the logarithmic gain...
May 2017 - Mouser Electronics announces the availability of the new Murata SCA3300-D01 3-axis...
This circuit was obtained in an old manual valid for practically any type of operational...