Found in the April 1995 issue of Electronics Now, this circuit operates at a lower frequency than conventional ones. The output current is very low.
An audio amplifier of good power, and great sensitivity; a simple tuning step and a detecting...
Using an operational amplifier with FET, this voltmeter has a high input resistance. The circuit has...
Found in the 1976 Siemens transistors manual, this circuit works with AM or FM IF signals. In the...