This two-transistor circuit consists of a powerful industrial-use siren. The circuit is from a Radio Electronics from November 1963. The powerful power supply is included.
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...