DATAMATH CALCULATOR MUSEUM
Regency TR-1 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:||126316|
|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:||Joerg Woerner|
On May 10, 1954 Texas Instruments announced a
revolutionary new electronic product, the silicon transistor. Searching for a
killer application, TI developed together with Industrial Development Engineering Associates (I.D.E.A.) of Indianapolis, Indiana the first commercial available miniaturized
transistor radio marketed as the Regency
TR-1. 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).
Inside the TR-1 you'll find not only the transistors manufactured by Texas Instruments, the transformer is a Dallas made product, too.
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.
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© Joerg Woerner, December 5, 2001. No reprints without written permission.