Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)
Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 138
ve a wider variation from the standard wavelength than the Shoemaker sets. OPEN CIRCUIT INDUCTANCE. 192. With direct coupling the open circuit inductance forms part of thesame helix as the closed circuit inductance, as has already been stated.(See fig. 40.) In inductively coupled sets the open… … Fia. 72.—Spiral Inductance.
