Hugo Gernsback - Amp Builder's Guide
Hugo Gernsback is best known for inventing the phrase "Science Fiction". He started publishing SF stories in his electronics magazines in the 1920s. He spent his lifetime making science and electronics easy for beginners and whole generations of amplifier builders have used his easy introductions to get started.

I found his reprint of Amplifier's Builder's Guide online. It is a short booklet that gives the basics of Amplifier design. It also gives several easy amps to build. If you want to build your own amps, then this little booklet is where to start.

Download it and print it out today. It's free! 
¶ Friday, August 31, 2007