Eveready model 771, 1920s
4 1/2 volt "C" battery
used for bias voltage in early battery operated radios.
"For best results put in service before Aug. 1929"
The next Vintage Electronics Expo
in partnership with the Kalamazoo Hamfest, Saturday, October 5, 2024 9am-4pm
Kalamazoo County Fairgrounds and Expo Center, 2900 Lake St., Kalamazoo, MI 49048