TRANSISTOR TWIN: The cross-section drawing [right] from the
French magazine Toute la Radio depicts the
inside of a commercial Westinghouse transistron
[above center]. In the drawing, the two metal
points (chercheurs) contact the surface of a
germanium sliver (cristal). A technician
adjusted the positions of the two contacts to
give the proper electrical characteristics while
viewing them through a window (fenĂȘtre). The
internal structure is similar to Bell Labs'
first prototype point-contact transistor [far
right], produced in 1948.
IMAGES: HERBERT MATARĂ; DR. ANDREW WYLIE;
SIEMENS AG; ARMAND VAN DORMAEL