Other amplifiers of the series like the MC3301, MC3401 and LM2900 can be used in this circuit. We found this setting on Motorola's Linear Interface ICs. The circuit uses a magnetic sensor.
This circuit was found in a 1987 edition of the United States' Hands On Electronics magazine. The...
We found this circuit with several types of sensors in a 1995 documentation. The circuit also has...
This circuit allows you to view two low frequency signals on a single channel oscilloscope. It was...