Burgess No. 4F Radio "A" Battery The Burgess No. 4FR was a 1˝ volt battery manufactured by the Burgess Battery Company of Freeport, IL. It was used in some hearing aid test equipment in the 1940s. It weighed 1 lb 2.8 oz. (534 g), and measured 2 9/16" by 2 9/16" by 4" high (6.5 x 6.5 x 10.3 cm). |  | Click picture for larger view | | |   | | | |
| Top view of the Burgess No. 4F Radio "A" battery showing the plug arrangement. The positive jack (right) was larger than the negative jack. |  | Click picture for larger view | | | |
| Front view of the Burgess 4F Radio "A" battery.
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| Side view of the Burgess 4F Radio "A" battery.
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| Bottom view of the Burgess 4F battery.
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