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1926 Hoyt Rotary Volt-Ammeter Complete Kit WORKS View Watchlist >
Antique Automotive Test Instrument Brass Meter w/ Wood Base, Case, Leads & Paper
- Winning Bid: $12.00
- 9 Bid(s) View Bid History
- High Bidder: Stuntly
Seller Accepts Credit Cards
Lot # 052
System ID # 20417927
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3 Watching
Up for auction is a remarkable 1926 Hoyt Rotary Volt-Ammeter, an early automotive diagnostic instrument originally designed for testing electrical systems in vintage automobiles. Manufactured by Hoyt Electrical Instrument Works, this high-end mechanic’s tool features a brass-rimmed meter mounted on a wooden base with classic Bakelite knobs. The dial is marked “Hoyt,” “Patented,” “Rotary,” and “Made in U.S.A.” - all hallmarks of its early industrial craftsmanship and innovation.
What makes this example especially desirable is that it is a complete set, including the original case, wires/leads, and paperwork with technical instructions and wiring diagrams - items collectors highly value alongside the instrument itself. Hoyt’s unique “Rotary” design allowed users to change voltage and amperage ranges by physically rotating the meter, a groundbreaking feature for its era. These instruments were even featured in period Harley-Davidson accessory catalogs. Complete examples in strong condition like this one can command $250-$300+, making this a fantastic opportunity for collectors of antique automotive tools, scientific instruments, or industrial décor.
Please review all photos carefully, as they are part of the description. Feel free to reach out with any questions - and as always, happy bidding!