Radioear Model P-1728 Transistor Hearing Aid Battery Tester
The Radioear Model P-1728 transistor hearing aid battery tester was
manufactured by E. A. Myers & Sons of Pittsburgh, PA and sold through
Radioear Corporation also of Pittsburgh, PA in 1955 or a year or so
previously.
It was designed to test the mercury batteries
used in transistor hearing aids at that time.
The Radioear Model P-1728 transistor hearing aid battery tester measured
2 1/16" in diameter x ⅞" thick (5.2 x 2.2 cm) and weighed 2.6 oz. (76 g).
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Front view of the Radioear Model P-1728 transistor hearing aid battery
tester. The test leads were only about 7˝" (17.5 cm) long.
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Close-up view of the meter of the Radioear Model P-1728 transistor
hearing aid battery tester showing the name (Radioear) and model number
(P-1728). This meter was designed to test batteries with voltages
between 1.4 and 3.5 volts.
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Side view of the Radioear Model P-1728 transistor hearing aid battery
tester. This tester was quite thick for its diameter.
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Front view of the box the Radioear Model P-1728 transistor hearing aid
battery tester came in.
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Bottom view of the box the Radioear Model P-1728 transistor hearing aid
battery tester came
in showing the model number (P-1728).
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Left side view of the box the Radioear Model P-1728 transistor hearing
aid battery tester came
in. The inscription reads, "Radioear—A Trustworthy Name in Hearing Aids
since 1924". |
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Right side view of the box the Radioear Model P-1728 transistor hearing
aid battery tester came in. The inscription reads, "Manufactured and
Guaranteed by E. A. Myers & Sons/306 - 8 Beverly Road/Pittsburgh 16, PA.
Note that the Myers owned Radioear so both names referred to the same
company.
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