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History of the manufacturer  

Radio Apparatus Co.; Pottstown, PA

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Name: Radio Apparatus Co.; Pottstown, PA    (USA)  
Abbreviation: radioappa4
Products: Model types Tube manufacturer

Advertised in a December 1916 issue of QST magazine was a full line of amateur equipment. This company also had an ad for a "Metallic Enclosed Rectifying Detector" in the April 1914 Modern Electrics and Mechanics magazine.


This manufacturer was suggested by Alan Larsen.

Some models:
Country Year Name 1st Tube Notes
USA  19 Traco 5A   Breadboard. 
USA  19 Traco 5C   Breadboard. 
USA  17–22 Electron Detector Model No. 36 [(Navy Type)] T_deForest  The Radio Apparatus Company Model No. 36 Electron Detector. For 1917 it was mentioned in a... 
USA  15 Radio Duplex Rotary Discharge Rotary Spark Gap   Radio Duplex Rotary Discharger rotary spark gap. The frequency was variable from 310 to 72... 
USA  17 Modern Receiving Transformer Model No. 50 [(Navy Type)]   The Radio Apparatus Company Model No. 50 Navy Type Receiving Transformer. 
USA  17–22 Undamped Wave Set Type 93   The Radio Apparatus Company Type 93 Undamped wave set was already mentioned in an add for ... 
USA  14 Metallic Enclosed Rectifying Detector   The Radio Apparatus Company Metallic Enclosed Rectifying Detector with shorting switch. 
USA  14 Loose Coupler   The Radio Apparatus Co. Inductive Tuner. This loose coupler is equipped with a 10 point se... 
USA  14 Varitone Rotary Spark Gap   The Radio Apparatus Co. Varitone Rotary Spark Gap. Converted a coarse pitch spark into a 5... 
USA  19 Traco Navy Type Receiving Transformer Type 5A   Loose Coupler 
USA  19 Traco Navy Receiving Transformer Model 5C    
USA  17–20 Long Wave Tuner Type 94   Wavelength receiving range 300 to 18,000 meters. 


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

October 1919 The Wireless Age Magazinetbn_usa_radioapparatus_oct_1919_wirelessage180k.jpg
May 1916, The World's Advance for May page 127tbn_usa_radio_apparatus_ad_may_1916_worlds_advance_127.jpg


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