This wide-range radiation monitor was found in a 1980s documentation. The circuit uses a diode as a sensor and is quite critical requiring shielding shown in dashes to prevent snoring due to gain.
The 50 kHz signal generated by this circuit is applied to a low impedance inductive transducer. A...
This different audio amplifier was found in a 90's Electronic Design. The circuit uses components...
This circuit converts a resistance in the range between 1 k ohm and 1 MΩ to a signal in a...