Here is the basic amplifier schematic. This circuit can drive the 211 into Class A2, and in that mode, it exploits the full 30W capability of the FS-100s. Distortion is very low, even drawing grid current, and this design sounds every bit as open and detailed as my earlier single-tube prototypes. I'll also post the PS schematics if you want, but they are similarly complex due to the multiple voltages required by the amplifier. It's not a project for newer builders.
