De Forest Model C-100 crystal detector, circa 1915. Replica by Thorn Mayes W6AX, 1978 → DeForest Model C-100
De Forest Model C-100 crystal detector, circa 1915. Replica by Thorn Mayes W6AX, 1978 → Detectors
De Forest Model C-100 crystal detector, circa 1915. Replica by Thorn Mayes W6AX, 1978 →