This circuit makes use of an integrated LM2907. The circuit is from an old documentation being applied to cars that still used platinum, common at the time.
This circuit makes use of a commercial type current transformer. The circuit is from a 2005 Linear...
This circuit provides a linear attenuation of a signal up to 100 dB. The circuit operates with...
The filter shown in the figure can be implemented with general purpose amplifiers like the 741....