Found in a 1990s American technical brochure, this circuit is intended for alarms that use as photodiode sensors. The circuit has a frequency response of up to 20 kHz. The gain is 40 dB.
This circuit has two high-impedance inputs. The gain is high and more inputs can be added. Use a...
This is a typical ohmmeter circuit with 50 uA analog instrument. The circuit was found in Radio...
Found in a Motorola manual from the 1960s, this circuit shows how to use a transistor in a static...