Found in a 90s Electronic Design, this circuit employs CMOS functions to mix signals from two inputs. Capacitors and resistors depend on how the signals are to be sampled.
This small signal injector generator was found in the February 1971 issue of Radio Electronics magazine....
This amplifier, found in a 1981 publication, provides 15 W lHF power with a supply voltage of 14.4...
This simple passage alarm is powered by the power grid using an LDR as a sensor. The circuit is...