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History of the manufacturer  

Penberthy Injector Co.; Detroit, Michigan

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Name: Penberthy Injector Co.; Detroit, Michigan    (USA)  
Abbreviation: penberthy
Products: Model types
Summary:

In the November 1924 edition of The Radio Trade Directory on page 73, under the heading, manufacturers of crystal sets, and again in the November 1925 edition of The Radio Trade Directory on page 120, under the same listing for manufacturers of crystal sets, the Penberthy Injector Company was located at 1242 Holden Avenue in Detroit, Michigan.
Main business in steam injectors, also detector radios and cat wiskers known.

History:

This manufacturer was suggested by Wolfgang Scheida.


Some models:
Country Year Name 1st Tube Notes
USA  23 Perfect Receiving Set Model 4R   Penberthy Products Model 4R Crystal receiving set. 
USA  24 4-Pole Phone   4-Pole Phone. 
USA  23 Crystal Detector   Crystal detector available for panel mounting, or with brackets for surface mounting. The ... 

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