DATAMATH CALCULATOR MUSEUM
Regency TR1 by I.D.E.A.
|Date of introduction:||Oct. 25, 1954||Display technology:|
|New price:||$49.95||Display size:|
|Size:|| 5.0" x 3.0" x
127 x 77 x 33 mm3
|Weight:||11.0 ounces, 314 grams||Serial No:||01205|
|Batteries:||Eveready 412 (22.5V)||Date of manufacture:||1955|
|AC-Adapter:||Origin of manufacture:||USA|
|Precision:||Integrated circuits:||4 Ge transistors|
|Program steps:||Courtesy of:||Kirk B.Muri|
On May 10, 1954 Texas Instruments announced a revolutionary new electronic product, the silicon transistor. Searching for a killer application, TI developed the first commercial available miniaturized transistor radio marketed as the Regency TR1. Read the press release, dated October 18, 1954.
The first commercial transistor radio hit the consumer market in October 1954. The Regency TR-1 featured four germanium transistors operating on a 22.5-volt battery that provided over twenty hours of life (tube radios with batteries only lasted several hours at best). Several colors were initially offered in the plastic case: black, ivory, mandarin red, cloud gray, mahogany and olive green. Fashion iridescent colors were offered later and rare clear plastic cases also were made.
the TR1 you'll find not only the transistors manufactured by Texas Instruments,
the transformer is a Dallas product, too.
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© Joerg Woerner, December 5, 2001. No reprints without written permission.