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History of the manufacturer  

Duplex Engine Governor Co. Inc., The; Brooklyn, New York

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Name: Duplex Engine Governor Co. Inc., The; Brooklyn, New York    (USA)  
Abbreviation: duplexeng
Products: Model types
Summary:

In a January 1925 Radio Broadcast magazine advertisement on page 572 The Duplex Engine Governor Company Inc. was located at 48 Flatbush Avenue Extension in Brooklyn, New York.

Trade Name: Duplex

History:

This manufacturer was suggested by Alan Larsen.


Some models:
Country Year Name 1st Tube Notes
USA  24 RK 1 Supplementary Kit   "RK" 1 Supplementary Kit for all circuits including the Superheterodyne and Ultradyne. 

[rmxhdet-en]

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

October 1924 The Radio Dealer magazine advertisement page 96tbn_usa_duplexenginegovernor_ad_october_1924_radio_dealer_page_96.jpg

  
rmXorg