Category Archives: Projects

These articles are project-based and where there is a group of related articles or a series. They might also be ideas or projects for you to try at home.

LM3886 Chip-Amp / Gainclone Amplifier Project Build

I recently built a dual-mono LM3886 chip-amp / gainclone amplifier from a kit sold by Brian Bell, at chipamp.com. In this article, I discuss the history of the gainclone and how I built my first chip-amp!

The LM3886 is one of National Semiconductor’s single-chip monolithic amplifier integrated circuits. It’s almost an entire¬† amplifier-on-a-chip, with only a few extra parts required to build a fully functional, high-performance amplifier.… Read more

Krell KSA-150 Amplifier Repair & Restoration

This video documents my comprehensive overhaul and restoration of a gorgeous Krell KSA-150 class-A power amplifier.

This wonderful KSA-150 developed a serious fault at some point in the past. This had been quickly fixed and was sold to me in very poorly repaired condition. Because of this, I decided to completely overhaul the amplifier and restore it back to factory condition, using original spec or better parts.… Read more

Ten-Tec 1253 Regenerative Shortwave Receiver Build

I’ve just finished building a Ten-Tec 1253 Regenerative Shortwave Receiver kit and wanted to share some of the build process with you.

The Ten-Tec 1253 is a gorgeous little regenerative shortwave receiver, that is sensitive and fun to build and use. Building the Ten-Tec 1253 was fairly straightforward, there are a couple of little things to watch out for, but it was otherwise a relatively easy build for an experienced constructor.… Read more