Kits

At the Burning Amp Festival in 2017 Nelson presented a pre-amp using the Korg Nutube dual triode. The latest revision of the circuit available is n...

Updates  After a long wait, the new and improved version of the ACA, the ACA V1.8, is now in stock. Stuff you'll want to know about: V1.8 wirin...

Included in this kit are the following semiconductors needed to complete an Aleph J amplifier. This kit provides for 2 channels (one stereo amplifi...

The Iron Pre Completion Kit is over here. This is the Iron Pre from Zen Mod - limited quantities and hot off the press. There are two versions of t...

Your projects need a low voltage power supply. Very low noise. No hum, no mains pops. Efficient and portable. Enter the SilentSwitcher by Linear Au...

Noir is a unique low cost headphone amplifier project, comprised of three circuit boards. The entire Noir BOM is purchasable from Mouser in a singl...

F5M Essentials kit, consisting of one PCB for each channel, a PCB for the power supply, and active devices.  3 May April 2024 update: This kit cont...

Complete kits for Mark Johnson's VFET front ends. These are suitable for both the N and P VFET kits and will also drive other projects that are pla...

F5M completion kit, which contains a bunch of things to help you complete the amplifier. It does not include the essentials kit, nor a transformer,...

This is a parts kit to aid in the completion of your Iron Pre.  This kit is compatible with all boards marked 2021 or 2023V3.  This kit along with ...