Before reading this article, read and consider the question shown in the box. Society of Broadcast Engineers certification is the emblem of professionalism in broadcast engineering. To help you get in ...

General Radio plug-in adjustable wavemeter coil, thin wire, 20 turns. No style or type number. Unit mounts on a General Radio 247 wavemeter. See image, Harold Greenwood, "Pictorial Album of Wireless ...

Radio frequency inductance standard coil. A glass tube wound with cloth insulated large diameter (bell type) wire. Supported on black bakelite stand. A connecting rod is mounted on each end of the ...