Maine Memory Network
Maine's Online Museum

Login · My Account · Show Album



Fort Wayne-Duncan ampere-hour meter, 1895

Click on the image to zoom. Click and drag your mouse over the image to move it left or right. Use the small navigation window to select the area you wish to zoom on.

Item 74515 detail enlarge send e-card Share this on Facebook Share this on Twitter add to album

Purchase a reproduction of this item on


Developed by Thomas Duncan for alternating current arc-lamp systems, this meter measures the number of amperes consumed by a series of 10 lamps over time.

Companies supplying electric power sought a meter that would accurately record all types of usage.

Go back

Please post your comment below to share with others. If you'd like to privately share a comment or correction with MMN staff, please use this form.