Nelson's Bipolar Power Supply

It was designed to compliment the beautifully simple and inexpensive "minimalist" F5m

All JFETs are grade B/BL (6-12mA)

1) Gain Stage - The most popular option

no parts kits

This design uses 6xIRFP240 and 6xIRFP9240

or AU/NZ (Type I) AC plugs

The Zenductor III continues in the series of fabulous little amplifiers inspired by Mike Rothacher

It is reminiscent of the original Zenductor

The First Watt F8 is yet another incredible amplifier from Nelson Pass

Bill of Materials and Schematic

please adjust the bias current to a level suitable for your environment and/or increase the heatsinking

It is a drop-in replacement for many dual opamps: