If all these alternatives are lacking there is the electric flash lamp working with the dry battery.
The electrodes of a dry battery are the zinc and carbon elements.
I told him that in theory a dry battery was just a curled darling and no mistake, but when it come to practice, sho!
Cells of 'The 1900 dry battery' furnished the current used as a stimulus.
In the dry battery the zinc cup forming the outside of the cell is one of the plates of the cell (Fig. 39).
Another important improvement was the invention of the dry battery.
The Gassner dry battery polarizes much less quickly than the ordinary Leclanch.
Instead of fuse, however, each one had on its end two small shiny screws such as are found at the top of a dry battery.
He connected the other ends of these wires to a dry battery.
We lifted a dry battery cell out of its pasteboard case and found that it was contained in a metal cup of sheet zinc.