This is the PCBs of an ALL FET class A amplifier. The design is with reference to Boberly 2 stages cascode circuit EB1198/116 to form an ultra low distortion and high speed amplifying and driving circuit. The final stage is a pair of lateral MOSFET as to get to a 10w class A operation. When appropriately implemented, the amplifier can perform a open loop gain of 66dB and distortion of 0.05% (1kHz, open loop !!) and below 0.002% with mild feedback ! While the default circuit uses power MOSFET on the output stage, the design is universal and not confined to be used only as class A power amplifier. For example, medium power MOSFET can be used instead to form a high current preamplifier or headphone amplifier. With small signal transistors drop in place, the design can also be used as a high speed buffer or line amplifier for active filtering and other amplification purpose. We provide detailed schematic for this PCB by EMAIL ( the detailed schematic has component values) attaching to the shipment notice. PCB dimension: 91mm x 60mm. PCB thickness 1.6mm. This listing is a set of two PCBs. We do air shipping worldwide at US$6.00. We welcome combine shipping. Track Page Views With Auctiva's FREE Counter