Thread: Bicycle Powered Sump Pump?
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Oren[_2_] Oren[_2_] is offline
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Default Bicycle Powered Sump Pump?
On Wed, 31 May 2017 20:49:23 -0500, Dean Hoffman
wrote:

His efforts power radios of yesteryear
and his computer.

https://www.youtube.com/watch?v=PkhMqes3p38.
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