"This unique piece of apparatus uses Lissajous figures to show that the ratio of the frequency ratios in a diatonic scale are ratios of small numbers. On the side is an air-driven vibrating reed with a small mirror attached to its free end....
A hydrometer measures the specific gravity of a liquid relative to water. Nicolson's hydrometer differs from other hydrometers in being totally submerged in use.
Altar candlesticks; Mission Santa Clara; Religious articles; Santa Clara (Calif.); Santa Clara County (Calif.)--History;
Altar candlesticks (Mission period). Made of wood, plaster, pigment, and gilt. Both candlesticks are identical in design but x.2000.9a has more damage on the candleholder. Base is triangular with a smaller triangular piece on top. A stem widens to...
Bunnysuits; Electronic industries; Manufacturing; People; Photographs; Quality assurance; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Semiconductor wafers; Technicians; Technology; Women;
Black-and-white photograph of a fab operator, wearing an early bunny suit, loading a 4-Inch wafer into wafer boats.
Electronic industries; Manufacturing; People; Photographs; Quality assurance; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Semiconductor wafers; Spin/Rinse dryers; Technicians; Technology; Women;
Black-and-white photograph of a Spin/Rinse dryer. Spin/rinse dryers were used to in the etching process. The 2-inch wafers of the day had to be precisely loaded, if not they would would be tossed about and shattered during the spin cycles.
Electronic industries; Manufacturing; Microscopes; People; Photographs; Quality assurance; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Semiconductor wafers; Technicians; Technology; Women;
Black-and-white photograph of an engineer directing quality assurance inspection operators, who use microscopes to examine 2-inch wafers for production flaws.
Bunnysuits; Electronic industries; Manufacturing; People; Photographs; Quality assurance; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Semiconductor wafers; Technicians; Technology; Women;
Black-and-white photograph of an operator in an early bunnysuit. 4-inch wafer being prepared for possitive acid spin. 4-inch wafers were introduced at Intel in 1976.
Bunnysuits; Electronic industries; Manufacturing; People; Photographs; Quality assurance; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Semiconductor wafers; Spin\Rinse dryers; Technicians; Technology; Women;
Black-and-white photograph of an operator loading a 4-inch Wafer Spin\Rinse Dryer.
Electronic industries; Manufacturing; People; Photographs; Quality assurance; Santa Clara (Calif.); Santa Clara County (Calif.)--History; Semiconductor wafers; Technicians; Technology; Women;
Black-and-white photograph of an operator loading wafers into a diffusion process furnace.
