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History of the manufacturer  

E-D Manufacturing Co., The; Philadelphia, PA

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Name: E-D Manufacturing Co., The; Philadelphia, PA    (USA)  
Abbreviation: ed-mfco
Summary:
The E-D Manufacturing Company advertised in a December 1922 Radio News magazine. They offered a line of unit sets.

The company was located at 3269 Arch Street in Philadelphia, Pennsylvania. (February 1923, Commercial America magazine advertisement page 70)

Founded: 1897
Production: 1922 -
History:

The November 1922 issue of the Electrical Merchandising magazine had a news blurb about the company. (page 132)

"The E-D Manufacturing Company, Philadelphia, has been organized to sell radio equipment manufactured by the Electro-Dental Manufacturing Company. The officers of the Company are E. W. Sprankle and R. W. Brown. The E-D Company is offering to the market panel mountings and switches of new and unusual mechanical design. The unit design of the E-D panels is particulary interesting as the set can be increased from time to time."


Some models:
Country Year Name 1st Tube Notes
USA  23 Box   One dial (primary tuning control knob) 
USA  22 Unit Tuner   The E-D Manufacturing Company offered a line of Unit sets in a December 1922 Radio News ad... 
USA  22 Detector Unit UV200  The E-D Manufacturing Company offered a line of Unit sets in a December 1922 Radio News ad... 

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

December 1922 Radio News advertisement. page 1148tbn_usa_ed_manufacturing_ad_dec22radnews180k.jpg
November 1922 The Radio Dealer magazine page 34tbn_usa_ed_mfg_nov22radiodealerpg34.jpg
February 1923, Commercial America magazine advertisement page 70tbn_usa_e_d_manuf._feb._1923_commercial_america_page_70.jpg

  
rmXorg