How Spark Transmitters Work

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How Spark Transmitters work by Hal Kennedy, N4GG 1 [This article was written in support of The History of QST, Volume 1 Technology published by the ARRL and available at ] Pondering Spark transmitter operation is, at best, an infrequent occurrence among today s amateurs. It shouldn t be however, because in addition to the historical significance of our original methods, virtually all of us own and operate one or more Spark rigs today. If you drive a gasoline-powered car - or even if you don t - you have listened to the ignition noise from one.

How Spark Transmitters Work by Hal Kennedy, N4GG 3 Figure 2. Pictorial diagram of a 1905 spark gap transmitter with HV capacitor (Leyden Jars) and

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