Block 0 of A232 E.A.T. project description (Q23990)
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Block 0 of A232 E.A.T. project description
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Block 0 of A232 E.A.T. project description |
Block 0 of A232 E.A.T. project description |
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TENNIS RACKETS FOR "OPEN SCORE" {Open Score} A CRYSTAL-CONTROLLED FM TRANSMITTER WAS BUILT TO FIT INSIDE THE HANDLE OF THE TENNIS RACKETS. A CONTACT MICROPHONE ON THE RACKET PICKS UP THE SOUND OF THE BALL HITTING THE RACKET. THE SOUND IS BROADCAST TO A RECEIVER OUTSIDE THE TENNIS COURT AND FED INTO THE SPEAKER SYSTEM. THE FM TRANSMITTERS HAVE 10 mW OUTPUT AND OPERATE AROUND 90 Mc. ARTIS...
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