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Former AT&T engineer, Greenleaf W. Pickard and two associates founded the Wireless Specialty Apparatus Company to market crystal radio detectors in 1907. The company produced radio receivers for the Navy in 1908. A notable contribution to the development
of crystal radio receivers was the development of the Perikon Detector developed by Pickard. Wireless Specialties Apparatus Co. produced a number of early receivers marketed by RCA. The company acted as a manufacturing resource for RCA of receivers developed by GE and Westinghouse any time they could not meet the production demands required by RCA.

Radiola IX

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IP-503 Loading Coil

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Wireless Speciality Appratus Type B Amplifier

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Wireless Speciality Appratus SE-183A

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Wireless Speciality Appratus IP-500

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Wireless Speciality Appratus IP-501

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