The design idea presented here is a gain-trimmable wideband FET amplifier with very good speed, ... The OP-77 op amp contributes dc feedback to stabilize the circuit.

1. This amplifier circuit comprised of resistors, millifarad supercapacitors, and a FET was used to demonstrate the possibilities of the paper printed circuit board.

A FET is a lot more like a tube and amplifies voltages. ... 11 thoughts on “ Circuit VR: Starting An Amplifier Design ” RandyKC says: August 10, 2018 at 10:20 am ...

[Ben Laskowski’s] been working on a Class-D audio amplifier for several months. What you see above is the most recent version of the amp. A class-D amplifier uses transistor switching (or in … ...