The Grabber is down, again.
It is running unattended, so will be restored when someone can attend to it.
It still needs some recovery program if a reboot should occur (e.g. due to a power failure).
Spark Gaps and Coherers demonstrated and Measured by CuriousMarc
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*CuriousMarc provides a good demonstration of how spark transmitters work
with coherer detectors. His measurements are really illuminating. His
device j...
1 hour ago
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