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We found this circuit in the November 1992 issue of Radio Electronics magazine. The 30V power supply must be symmetrical and preamplification stages are included.
This preamplifier for magnetic cartridges was found in the February 1990 issue of Radio...
We find this circuit in an American manual from the 80's. The circuit can be implemented with more...
September 2016 - It can be obtained from Mouser Electronics the new integrated circuit µCC21520...