Marked: "Manufactured by / The Radio Shop / 1120 N. Ashland Ave. / Chicago, Ill. / Log Beach, Cal. / Sunnyvale, Cal. / Under Armstrong U.S. Patent / No. 113149". Specimen is a regenerative detector ...
Marked on tube base: "Kellogg S & S Co. / Radio / Chicago". Three tube receiver employing 201-A type tubes (missing from unit.). Circuit is a regenerative detector followed by two AF stages. Tickler ...
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