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What year did transistor radios come on the scene How much did they cost? 

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This unified approach makes prototyping of cognitive radio capabilities with tactical radios faster, easier, and cost-effective.
The out- come was that SREM units did register the outgoing SPE on-time and that these could serve as indicators of radiation hazards, leading to successful alerts.
Japanese firms spent about as much of their own money on R&D, relative to sales, as did similar U. S.firms.
Sales data increased from 26.33 DID in 2002 to 28.12 DID in 2004 and 28.93 DID in 2005.
Specifically, they suggest –– contrary to our assertion otherwise –– that they did in fact know the cause of each transmitter failure.
We conclude that although mergers did confer some benefits on the participating firms, they were not a prerequisite for railroads being able to achieve substantial cost savings.
The data, however, did demonstrate considerable variability in cost efficiency throughout the United States and its territories.

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