We Rediscover Spark Gap Radio by Accident

It's 1890 all over again in the lab. By complete accident, I find myself the new owner of a high voltage box that turns out to be a vintage Xenon lamp sparker. Not only do we make it work, but we use it to retrace the critical experiments that led to the discovery of radio, using the lamp starter as the spark gap transmitter, and a coherer as the receiver.

Ken’s blog article gives more details about the reverse engineering of the Siemens sparker:
https://www.righto.com/2020/03/repair...

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