Description: Description This ammeter belonged to my grandfather; a military man, inventor and writer. He passed in 1994. Make me an offer! The Eldredge Eclipse is a small handheld pocketwatch ammeter that was released sometime between 1903 and 1907. The Eclipse is built around a size 18 pocketwatch case and is a well made device; a pierced painted dial allows some of the inner workings of the meter movement to be seen, and the dial is protected by a thick beveled crystal of a type that would typically be seen on a decent quality pocketwatch of the era. The Eldredge Eclipse was designed almost exclusively to test #6 dry cells, which produce 30 amps when shorted at full charge and were a common power source at the turn of the 20th century. To test a dry cell, the peg at the bottom of the meter would be brought into contact with the positive terminal of the cell. A cloth wire with a metal probe would have originally been attached to the stud on the bow of the meter, which would be brought into contact with the second terminal of the battery for a brief moment to take a reading. This meter produces an almost direct short when connected across a battery this way; a Victorian-era #6 dry cell could handle this level of abuse easily, but collectors would be ill advised to test modern batteries with this meter.
Price: 100 USD
Location: Fort Collins, Colorado
End Time: 2024-12-26T17:54:22.000Z
Shipping Cost: 0 USD
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Item Specifics
All returns accepted: ReturnsNotAccepted
Maker: Eldredge
Age: 1900-1940
