MFJ-3506, BOOK, FERROMAGNETIC-CORE DESIGN , APP. HANDBOOK Features_Lower Spacer Plate 101 inches fully extended

101 inches fully extended

Feedpoint is an SO-239 pigtail

Enjoy superb audio and convenience with this economical mobile speaker

Hide the base by covering it with grass

Adjusting 1 band has minimum effect on others

MFJ-3506, BOOK, FERROMAGNETIC-CORE DESIGN , APP. HANDBOOK Features_Lower Spacer Plate 101 inches fully extendedIf you use inductors and transformers with magnetic cores, you need this book. By the late, legendary designer and amateur radio operator Doug DeMaw, W1FB. The only book that emphasizes practical aspects of magnetic cores, you need this book. By the late, legendary designer and amateur radio operator Doug DeMaw, W1FB. The only book that emphasizes practical aspects of magnetic core materials from low frequencies through UHF. In depth understanding of