Tube amp kits, tube amp books, and tube guitar amplifiers with Power Scaling! Technology and inspiration for musicians, builders and hobbyists.
Enjoy our broad selection of books, kits and parts for audio building, from tube amps, preamps, and guitar and bass projects, to innovative sonic enhancements. Our London Power Amplifiers and other MI products will soon be listed on this site as well.
Please browse both our products and our Technical Articles. If you like the information on this site, just imagine what you'll find in our books!
We support what we sell, and encourage you to contact us regarding applications for and installation of our products.
- LP Tech: Evolution to Revolution
- Power Scaling Builders & Installers
- Tube Amp FAQ
- Power Scaling Q&A
- Super Scaling Q&A
- Raw Bias Supply Issues & Mods
- Power Scaling vs. Variable Power
- PCBs vs. Hand-Wiring
- PCBs - Colour Considerations
- Effects Loop Truths
- Cathode-Bias/Fixed-Bias Switching in Tube Power Amplifiers