This is an #amateurradio #qrp T-match antenna matching unit made with two PCBs. It includes a resistive bridge for testing the match while presenting a low SWR. The inductor is a tapped PCB spiral inductor and the capacitors are two circuit boards that slide past each other. You add some switches, coax connectors, resistors, and diodes, for a total of about $4.00 in parts. Make it a project at your club!