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History of the manufacturer  

Electro Importing Co. (Eico); New York City, NY

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Name: Electro Importing Co. (Eico); New York City, NY    (USA)  
Abbreviation: electro-im
Products: Model types Tube wholesaler

Electro Importing Company.; "E.I.Co." Park Place 32, New York (~1904); Selling radio components and electrical supplies by mail-order. 1905 marketing the "Telimco Wireless Telegraph", a simple and cheap receiver and transmitter set.


Also 233 Fulton, New York, NY (1914), and "The Electro Importing Co." 231A Fulton Sreet, New York with two retail stores (known as "the E.I. Company").
Founder was Hugo Gernsback, who also wrote his own catalogues like: "Modern Electrics", publishedtechnical articles as well as books, and edited magazines especially with Science Fiction based stories.

Some models:
Country Year Name 1st Tube Notes
USA  16–18 Trans-Oceanic Undamped Wave Loading Coil No. HEK4500   The Electro Importing Company "Electro" "Trans-Oceanic" Undamped Wave Loading Coil. It ... 
USA  07–10 Spark Coil 1088   Coil especially constructed for use in wireless telegraphy. The usual form of Ruhmkorff... 
USA  09 Coherer    
USA  09 Electro Special Sending Helix No. 9270a    
USA  14 Eico Spark Gap   Socle en marbre 
USA  11–14 Adjustable Spark Gap No. 9220a   Electro Importing Adjustable Spark Gap No. 9220a 
USA  11–14 Jr. Tuner Double Slide No. 9950    
USA  08–10 Telim Auto-Coherer No. 1098    
USA  17/18 Electro Arlington (NAA) Baby Timer No. 4433 [Early version]   The "Electro" Arlington (NAA) Baby Timer in the De Luxe Receiving Cabinet covered the 2... 
USA  14–18 Electro Bull-Dog Spark Coil 1-Inch No. DGE1088    
USA  11 Electro Tuner No. 8486A    
USA  08–16 Electro Sending Helix No. 9270    


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