| 1987.0487.165 | Texas Instruments Collection | Object |
| 4" Silicon Wafer - 1976 TI number: G00427 This plaque contains a probed slice from the first lot of 4in silicon processed through Sherman BP1. The lot was probed on June 28, 1976. The device type is SN7489, a 64 bit Random Access Read/Write Memory. |
| Texas Instruments (Burrell Ketcham.)
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