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 simple multitester tests continuity, semiconductors, leaks, and other common component...
A passive mixer with few components is that of the circuit shown, found in a 1982 documentation. As readers...
The purpose of this circuit is to detect audio that amplitude modulates an RF carrier. The circuit is...