Spark-gap transmitter - Wikipedia
How does the width of the gap between two conductors, in the method that uses DC spark in the gap to get radio waves, relate to the frequency of the waves? -
Sparks
How to build the simplest radio transmitter - the spark gap radio - YouTube
Spark Transmitters
DIY Spark-Gap Radio Transmitter and Explanation — Steemit
SPARK GAP TRANSMITTERS
Spark Transmitter & Receiver (another dirty diy trick) - Codrey Electronics
File:Inductively coupled spark gap transmitter circuit.svg - Wikimedia Commons
History of Radio
Tinfoil.com - Cylinder of the Month
File:Inductively coupled spark gap transmitter circuit.svg - Wikimedia Commons
File:Spark gap transmitter diagram.png - Wikimedia Commons
Spark Transmitter Circuit
history - What does the spark-gap do in a spark-gap transmitter? - Amateur Radio Stack Exchange
Spark-gap transmitter - Wikipedia
History of Radio
History of Radio
File:Marconi spark gap transmitter 1896.svg - Wikipedia
VE7CNF - A Spark Gap Transmitter with a Pure Note
Diagram of the spark gap driver circuits | Download Scientific Diagram
Spark-gap transmitter - Wikipedia
Spark Gap Transmitter/Marconi Receiver - the Simplest Wireless Transceiver : 3 Steps (with Pictures) - Instructables
