MAKE A MEME View Large Image Transmitter tank coil.jpg spark-gap radio transmitter around 1918 The spark gap and capacitor were connected with clips to the bottom primary coil to make a tuned circuit When the spark gap triggered current from the capacitor flowed back ...
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Keywords: Transmitter tank coil.jpg spark-gap radio transmitter around 1918 The spark gap and capacitor were connected with clips to the bottom primary coil to make a tuned circuit When the spark gap triggered current from the capacitor flowed back and forth through the coil and created damped radio frequency oscillations The top secondary coil was connected with clips to the antenna and ground The mutual coupling between the primary and secondary coils was adjusted by moving the secondary up less coupling or down more coupling The oscillating currents induced in the secondary were radiated as radio waves by the antenna before 1918 Downloaded July 22 2013 from http //books google com/books id KpZEAAAAIAAJ pg PA269 dq 22double+helix+oscillation+transformer The Principles Underlying Radio Communication National Bureau of Standards radio pamphlet no 40 US Signal Corps December 10 1918 US Government Printing Office p 372 fig 197 on Google Books author PD-USGov Uploaded with UploadWizard Inductors
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