This circuit was suggested by Analog Devices in 1980s documentation. The circuit has a grounded bias and sensor.
This circuit is from an American magazine that no longer exists, Modern Electronics, in a February...
March 2017 - The new Texas Instruments TPA3244 class D amplifiers with power ratings from 60 to...
This preamplifier is intended for the use with magnetic pick-ups. Power supply must have voltages...