is among my oldest transistor radios, approaching transistor radios' Big
The world's first transistor radios were introduced around Christmas 1954. This GE Model 677 was introduced in 1955, along with its twin siblings 675 (white), 676 (black), and 678 (aqua).
It uses a dual battery that would be strange today, 13.5 volts and 4.5 volts. It is designed to come apart easily, presumably for servicing.
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