You wind a handle or crank to tighten the spring. As the spring unwinds it provides power for radios etc.
Does anyone know what this technology is called? How to find some of the manufacturers and/oe products?
Thanks.
Owen
Disclaimer and Disclosure
The Alternative Energy Store, Inc reserves the right, within its sole discretion, to refuse or delete any posting or portion thereof, or terminate or block the access to this forum.
The opinions and statements posted on this forum are the opinions and statements of the person posting same, and do not constitute the opinion or act of the Alternative Energy Store, Inc (AltE). The Alternative Energy Store, Inc does not endorse or subscribe to any particular posting. No posting shall be construed as the act or opinion of the Alternative Energy Store, Inc.