In electronics, a C battery is any battery used to provide bias to the control grid of a vacuum tube. This is a hub page for electronics. ... Four double-A (AA) rechargeable batteries In science and technology, a battery is a device that stores energy and makes it available in an electrical form. ... In electronics, a vacuum tube (U.S. and Canadian English) or (thermionic) valve (outside North America) is a device generally used to amplify, or otherwise modify, a signal by controlling the movement of electrons in an evacuated space. ...
Eveready #761 4½ Volts "C" Battery L 4" W 1.25" H 3" ca. 1942
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