Fet version of the Sharp channel
of the Bogner Triple Giant
Stage by stage frequency response in comparison with the original tube version
Schematics (pdf)
Ready to transfer PCB (pdf)
Upper side assembly (pdf)
Bottom side assembly (pdf)
3D model.
Assembled board.
With proper assembly, tuning is reduced to the adjustment of the drain voltage of transistors in accordance with the schematic by trimmer resistors.
Assembled in box.
Sample kindly recorded Denis Soloviev (Denn).