Baxandall Project -- Split-Rail Power Supply Circuit

This split-rail power supply circuit for the LM324 Baxandall Bass and Tone project is a very simple one that is easy to build. You will notice that it has no voltage regulators, and by eliminating those, we also eliminate a plethora of unnecessary wiring and cost. Instead we spend the money on capacitors across the bridge rectifier diodes. In addition, we use a series of resistors and capacitors, to smoothen the power supply and make it free of ripple. It is a very simple and elegant circuit that has worked well for me in the past, and often found in commercial high-end audio products as well.

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