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History of the manufacturer  

Wireless Specialty Apparatus Co.; Boston (MA)

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Name: Wireless Specialty Apparatus Co.; Boston (MA)    (USA)  
Abbreviation: wirelesssp
Products: Model types Others Tube manufacturer

Wireless Specialty Apparatus Company; Boston, Massacussets.
Brand label of their condensers: "Faradon".

The Wireless Specialty Apparatus Company in Boston was a major manufacturer of commercial and military radio equipment from 1907 until sometime in the 1920's when it was absorbed into the RCA conglomerate.

The WSA "Audion" tube was designed by Pickard and 100 of the tubes submitted to the Philadelphia Navy Yard in 1917.

Founded: 1907
Production: 1907 - 1919
The Wireless Specialty Apparatus Company (WSA) was formed in 1907 by Col.John Firth, Greenleaf W.Pickard, and Pickard's patent attorney, Philip Farnsworth.
It started with manufacture of Pickards Silicon and Pericon detectors (PERfect pIcKard cONtact). Pickard developed receivers like the IP76 around 1908.

There were not less than 21 Pickard patents, property of WSA, which covered, among others, circuit arrangements for crystal sets, crystal members, means for mounting of crystals and contacts and mechanism to permit the user's selection of contact points of the contacting conductor on the crystals. They covered also loop arrangements.
May 1, 1922 WSA published a series of advertisements and circulars which indicated that crystal radio receiving sets are controlled by patents owned by them.
The retailers should insist upon guarantees from other radio manufacturers, holding them (the dealer) harmless in case a suit was filed by WSA alleging patent infringement.
That prompted the forming of "Independent Radio Manufacturers, Inc." to fight WSA (under the lead of Freed Eisemann).

This manufacturer was suggested by John Koster.

Some models:
Country Year Name 1st Tube Notes
USA  14 Faradon High Voltage Capacitor   High Voltage Capacitor, .004 Mfd. at 15,000 Volts. This capacitor, with the trade name of ... 
USA  19 Eaton oscillator Type Triode C   The device bears the name of Lt. William A. Eaton, US Navy. Eaton became the director of t... 
USA  18 IP501 (SE-1420) Receiver VT-1  Uses a crystal detector or 1 tube VT-1. See also Amrad, Type B, SE-1420. From 1919 onwards... 
USA  18 Crystal Detector Receiver IP500   Receiver/reactive Tuner for external Detector, either Crystal or tube (Triode). Buzzer for... 
USA  17 Triple crystal detector IP203 SE183A   Ebonite panel with three different crystal detectors. 
USA  07 IP-76 Crystal Receiver [1907 model]   There are several completely different models #IP-76 (1907; 1908; 1909; 1914). 
USA  08 IP-76 Crystal Receiver [1908 model]   There are several completely different models of #IP-76 (1907; 1908; 1909; 1914). 
USA  14 IP-76 (double deck) Crystal Receiver [1914 model]   Double-deck receiver.There are several completely different models #IP-76 (1907; 1908; 190... 
USA  18 IP-77 Crystal Receiver    
USA  22 Faradon Condenser UC-1803   The Wireless Specialty Apparatus Co. Model UC 1803 Faradon Condenser was intended for use ... 
USA  22 Faradon Special Antenna Coupling Condenser UC-1846   The Wireless Specialty Apparatus Co. Model UC 1846 Faradon Special Antenna Coupling Conden... 
USA  08 1908 Type Crystal Receiver   This model is not named IP-76 according to Wireless Specialty Catalog. 


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

October 1919 Radio News ad for Wireless Specialtytbn_wirelessspecialtyad.jpg
Published in the June, 1920 issue of the PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERStbn_usa_wirelessspecialty_1920ad.jpg
Radio Broadcast, Apr. 1926, p. 703tbn_usa_wireless_specialty.jpg
Radio Broadcast, May 1926, p. 85tbn_usa_wireless_specialty_condenser_2.jpg
Electrical Experimenter, April 1920tbn_electrical_experimenter_april_1920.png