This is the continuatioin of the 20W Amplifier Project. The previous two entries can be found here and here. With the main part of the 20W amplifier assembled and operational, it’s time to focus on control volume. In the circuit…
About a year and a half ago I created a Smartphone Tripod Adapter for the Samsung Galaxy S3, it has worked really well. Now a modification to the original design is required to accommodate the slightly smaller Moto X that…
The 20W amplifier project, as detailed in the last entry, was a partial success. It was working, in that the sound was being amplified, but there was a tremendous amount of humming. The other issue, which does not have anything…
After attempting, and failing, at building an audio amplifier for the garage, simpler design was in order. After some research, amplifiers based on the TDA2003 IC seem quite common and rather easy to build. This is the schematic used for…
This is the fifth part in the Amplifier Project series. This covers the entire process of building an audio amplifier based on the information located at Red Free Circuit Designs. The first four parts of this project are located here:…
Back in 1984 I started my post-high school education at DeVry. I was there to get a ET certificate (Electronic Technician). The first project that I worked on was the Console 80, and it was the basis for all experiments…
This is the latest in a series of projects for the simple desks I build a couple years ago. The previous projects are located here: Simple Desk Simple Desk Drawers Simple Desk Cable Management The goal is to get the…
This is the fourth part in the Amplifier Project series. This covers the entire process of building an audio amplifier based on the information located at Red Free Circuit Designs. The first three parts of this project are located here:…
This is the third part in the Amplifier Project series. This covers the entire process of building an audio amplifier based on the information located at Red Free Circuit Designs. The first two parts of this project are located here:…
Sourcing Parts The part sourcing turned out to be more difficult than originally thought. The concept of harvesting components turned out to be a bit optimistic, there were but a handful of parts that can be used, mostly to do…