| 1987.0487.238.04 | Texas Instruments Collection | Object |
| Integrated Circuit - 1964 TI number: G00158 These devices, data code 415 (1964, 15th week) are from early production of TI's first catalog line of linear circuits. These units were part of QRA Weekly-Add-To test lot. At that time, a random sample was taken from production each week and placed on life and environmental testing. The SN521 is an operational amplifier (Op Amp). |
| Texas Instruments (Howar Moss, Charles Phipps.)
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