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History of the manufacturer  

Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)

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Name: Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)    (USA)  
Abbreviation: firestone
Products: Model types Brand
Summary:

Firestone Tire & Rubber Co., 1200 Firestone Parkway, Akron, Ohio.
Trade names: Air Chief, Firestone, Roamer. Because some write also Airchief, we have included this in the name!

Radio tubes were made for Firestone by KenRad. Some were triple branded Firestone, Air Chief and KenRad

Founded: 1900
History:
The company sponsored "The Voice of Firestone" on the radio beginning on December 1928. The program was transferred to television as an NBC simulcast on 5th September 1949. The last broadcast was in 1963.
On Monday, September 16, 1940, a U.S. federal trademark registration was filed for FIRESTONE AIR CHIEF by the FIRESTONE TIRE & RUBBER COMPANY, Akron. The USPTO has given the FIRESTONE AIR CHIEF trademark serial number of 71436009. Obviously the AIR CHIEF brand was initially used for air conditioning units, but also for a Firestone record label "PHILHARMONIC Air Chief", and radio models.
In late 1979, Firestone brought in John Nevin, the ex-head of Zenith Electronics, as president to save the hemorrhaging company from total collapse. It was more than a billion dollars in debt at the time, and losing 250 million dollars a year. Nevin closed nine of the company's seventeen manufacturing plants, including six in one day. He moved the company from its ancestral home in Akron to Chicago. He spun off non-tire related businesses, including the Firestone Country Club. It was considered a deliberate plan to boost the stock price, and it paid off. In 1988 after discussions with Pirelli, Nevin negotiated the sale of the company to the Japanese company Bridgestone.


Some models:
Country Year Name 1st Tube Notes
USA  52 S7402-8 12SA7  Built in loop antenna. 
USA  38 Chassis R307X 6C5G  Export version for (Air Chief) Receiver Models 3071 to 3079; Stock No's 7406-2, 7423-2, 74... 
USA  40 S7426-2 Ch= R-312 6A8G   
USA  39 S7426-3 Ch= R313 6A8G   
USA  40 S7425-9 Air Chief Ch= R317 6A8G   
USA  38 3061 Air Chief Ch= R-306 6L7G   
USA  38 3062 Air Chief Ch= R-306 6L7G   
USA  38 3063 Air Chief Ch= R-306 6L7G   
USA  38 3064 Air Chief Ch= R-306 6L7G   
USA  38 3065 Air Chief Ch= R-306 6L7G   
USA  38 3066 Air Chief Ch= R-306 6L7G   
USA  38 3067 Air Chief Ch= R-306 6L7G   

[rmxhdet-en]

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

Firestone Air Chief Philharmonic record. The particular tune was originally recorded and issued in 1940 by Columbia (#35571), the Firestone label was issued probably midth or end og the 40ies. Pianist Frankie Carle is mentioned as composer only.tbn_phacf_fr30b_co27521.jpg

  

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