Nathan Campos

I was a bit bored a couple of weeks ago so I decided to design a very simple discrete amplifier rated for 6W/channel just to make sure it would't oscillate and be more confident to build bigger ones.

As you can see it's a fairly simple design with a op-amp pre-amplifier and a discrete power amplifier. Building it was extremely simple, the difficult part is always mounting all the panel components and wiring everything.

A while ago I built a program called build-bom to help me quickly find the component values when assembling a board. It's a great use for a old EeePC that you may have laying around.

One thing that you may have noticed is that I've used canned transistors instead of your typical plastic TO-92. The only reason I did this was because they looked cool and I have a bunch laying around.

How the board looks like in CAD	Organizing the components to begin soldering	Started soldering
Checking the values with my program	Top view of the board after soldering	Side view of the board
Board with the heatsinks	Wires soldered	First power-up
Front panel	Back panel

If you want to know more about the amplifier check out the GitHub repo.

This article was imported from my old blog . Some things may be broken.