The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 530
0/ =:b b- Ri Rz … towwl ^XfH ^^ 7^ Fig 253 Signal Copps, U. S Army Radio Telephone SetBox, Type SCR 67 Transmitter Diagram. be maintained as in land telephony without throwing an an-tenna switch from transmitter to receiver. In these sets meansare provided so that an outgoing message will not greatlyaffect the…
Telegraph, Wireless · Radio
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
