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![]() " *JimH*" wrote ... How about this *handy* device from 1973........the original cell phone: Name: Motorola Dyna-Tac Size: 9 x 5 x 1.75 inches Weight: 2.5 pounds Display: None Number of Circuit Boards: 30 Talk time: 35 minutes Recharge Time: 10 hours Features: Talk, listen, dial http://www.3g.co.uk/PR/April2003/Brick.jpg That's a picture of Marty Cooper with an early mock-up of the first *portable* cell phone. We didn't get it into production until the early eighties and what a PITA that was. I still have some prototypes of the various ceramic hybrid modules (~20) that plugged into the main motherboard. As I recall it cost ~$400 just to produce a functional logic module in the early days. The first units sold for about $4500. Funny story: One of the major difficulties was getting it to pass a 4' drop test without breaking internal modules. To celebrate initial production the group had a big get together at a local bar and presented Marty with a gold plated unit. As it was passed around and admired one of my rather bold and compulsive co-workers held it at shoulder height, proclaimed that "If it's a production unit it should pass the drop test" and dropped it on the floor. There was stunned silence for a few seconds followed by nervous laughter as it was picked up and determined to still work. The look on Marty's face was priceless. I think Gerry might have suffered consequences had he not been so brilliant. He was a very early proponent of digital voice encoding. -rick- |
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