Homebrew Portable T-Match ATU | Get out of the Radio Shack and Live Life
Automatic antenna tuner using an Arduino – Ernest Neijenhuis PA3HCM Homepage
My homemade transmatch for GPM-1500- YO9BXC.COM
Homebrew T-Match Antenna Tuning Unit (ATU) | Jet Propulsion
Homebrew T-Match Antenna Tuning Unit (ATU) | Jet Propulsion
HAM HF 1-30 Mhz Manual Antenna Tuner for HAM Radio QRP DIY Kits with Standing Wave Indicator, Good Helper for Antenna Erection : Amazon.com.au: Electronics
How to build a simple antenna tuner | The SWLing Post