1987.0487.231 Texas Instruments Collection Object

Silicon Grown Junction Transistor - 1954
TI number: G00127

Type X-15 was a May 1954, engineering experimental device designed to increase the rate dissipation of the silicon grown junction transistor from .150 W to .750 W.

Item was part of the original S/B Lobby display and was used in the 50th Anniversary exhibit. The original x-15 was filled with DC200 silicone oil and mounted in a heat sink strap which could be screw mounted. The oil was changed to a Dow Corning alumina impregnated silastic for production. The silastic required a heat cure prior to soldering the can in place. The device was introduced as the TI951 series in the latter part of 1954.

Related material in collection: G00128, 336.
Texas Instruments (Norman Ince, Jim Lacy.)

Contact Nance L. Briscoe for further information

National Museum of American History

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