| 1987.0487.144 | Texas Instruments Collection | Object |
| Numeric LED Display - 1971-2 TI number: G00439 This item is a prototype TIL308 Numeric Display With Logic. It was made in late 1971 or early 1972. It consists of a seven segment gallium arsenide phosphide digit with an integrated circuit. The TI IC is an SN74143 4 Bit Counter/Latch Seven-Segment LED/Lamp Driver chip. The assembly is mounted on a lead frame and cast in an electrically nonconductive transparent plastic compound. This unit was cast in clear plastic, but standard production units were cast in a red compound. The IC is mounted above the digit but was placed below it in production. Related material in collection: G00440, 444. |
| Texas Instruments (Bob Cole, Don Cornett, Ron Grotti.)
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