The circuit shown is from the 1994 National Semiconductor Linear Applications Handbook. The semiconductor component used is not common today.
This circuit was found in the May 1982 issue of Radio Electronics magazine. The circuit inverts the...
This circuit must have its input connected to the collector of the last IF transistor of the FM...
The circuit shown can measure currents less than 1 uA and is powered by two 1.5 V batteries in a...