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Image: Philco Surface Barrier transistor=1953

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Description: This is a rare Philco "experimental" surface barrier transistor that is encapsulated in a sealed vacuum tube and was developed in early 1953. This item is in my private archive collection, that I had acquired from a former Philco engineer employee that worked at the Lansdale Tube company - Philco division. Philco had made its production models of the surface barrier transistor in late 1953, which were hermetically sealed in a small aluminum can.
Title: Philco Surface Barrier transistor=1953
Credit: Own work
Author: Historianbuff
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes

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