On Wednesday, April 1, 2015 at 4:09:22 PM UTC-4, email@example.com wrote in sci.electronics.repair:
The Sun can sometimes offer more electrons under very dangerous scenarios, though:
"On September 1-2, 1859, one of the largest recorded geomagnetic storms (as recorded by ground-based magnetometers) occurred ... Some telegraph operators could continue to send and receive messages despite having disconnected their power supplies.
(Solar Storm of 1859, also known as the Carrington event)