I beat him to it!! A while back there were DIYers trying to make the smallest amps. I made one using surface mount components and then ruined it by breaking a pin on one channel. I then remade it with a standard 8 pin dip. This 1 1/4" X 1 1/4" board is a standard Cmoy I call the "Face Amp" using a 2132, or at this point I was trying the 2228. This design always looks like a face when I make the traces or wires as short as possible and using a dual opamp. This amp was made a long time ago.
I don't have photos of the final amp which is housed in an aluminum enclosure 2" X 2" I think and then covered with Rosewood. That is next to photograph. It is powered with one 15V Alkaline remote battery for about 4 hours.
I finally got my website going with a few photos. tonight. This amp will easily fit in the little Altoids box. You can get a size reference by looking at the standard RCA plug to the right. Click the photo to get a better size. I had to compress a lot, but am still working with the photos made with my old Nikon manual and then digitized on a CD by the developer. Photos take me a long time because I don't have a digital camera.
There are also photos of my first Cmoy with a custom box lettered by me. The photo looks strange until you click on it. Too many overlapping pixels I think. It makes the letters look out of line which they aren't. This amp has been around the block a time or two. It is scratched up and dirty. Sorry.
Check it out. There is also my Szekeres with a board etched by me. My first board. The amp inside the black box is now an etched board "face amp."http://www.wilkes.net/~dwpumphery/