KC9KEP

Gina Forsyth, Brian O'Donnell, Tom Nickel jamming Wandering Aces Special

Alfred P. Morgan 1-tube radio and 3-tube amplifier by KC9KEP

KC9KEP Homemade superheterodyne 80m radio handwound coils

Morris Gingery Ham Radio Coil Winder

homebrew 3-tube ham radio receiver ARRL Simple-X