S1 is a multi-section porcelain rotary switch with 3 positions per section (3x5).
CV1 is a variable capacitor from Old radios (small gap), about 500 pf and CV2 a bit higher capacitor, 2 x 350 pf in parallel (about 700 pf total capacity).
My antenna tuner working perfect with any type of antenna from 80 up to 10 meters and I'm running about 150 Watts on the key without problem for many years.
Back to HomeBrew-page