Radio Inquiry Unit
According to the E.H. Armstrong, wireless receiving system patent, “The present invention relates to improvements in the arrangement and connections of electrical apparatus at the receiving station of a wireless system, and particularly a system of this kind in which a so-called “audion” is used as the Hertzian wave detector; the object being to amplify the effect of the received waves upon the current in the telephone or other receiver circuit, to increase the loudness and definition of the sounds in the telephone or other receiver, whereby more reliable communication may be established, or a greater distance of transmission becomes possible. To this end I have modified and improved upon the arrangement of the receiving circuits in a manner which will appear fully from the following description taken in connection with the accompanying drawings.”
