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QX3 Digital Image Gallery
Diodes
A diode is an electronic device that changes alternating current into pulsating direct current. Originally diodes were very large and powerful vacuum tubes, but today's diodes are small components that fit onto a circuit board along with resistors and capacitors.
These images were captured using the oblique illuminator built into the microscope head with the assistance of a Dolan-Jenner Model 180 fiber optics illuminator using a 150 watt projection lamp. The light pipes of the illuminator were placed at approximately a 45-degree angle with respect to the optical axis of the microscope and were positioned to evenly illuminate the specimen. A 2-inch square section of black paper was placed over the diffusion filter on the stage of the microscope to avoid any glare from transmitted illumination.
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