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Junction Two
 Two Times Two Tote Pattern By Indygo Junction $7.99 Four simple squares of luscious wool make a unique handbag or small tote approx. 10" square and 2 1/2" deep. Needle felt a rich mix of fiber and yarn in a random design. Then cut and reassemble for a complex mix of color and texture. Or, use a combination of appliqu«±, embroidery and stitching to create a refreshing tropical delight of hand dyed wool.  The PN Junction Diode: Volume II (2nd Edition) (Modular Series on Solid State Dev., Vol 2) $39.00 This book contains errors. The book attempts to simplify the physics of PN junction diodes, especially by using suggestive sketches in place of mathematical reasoning. As a result it sometimes attracts readers who are learning this material for the first time. Unfortunately the book contains errors which makes its use in this fashion unacceptable. It teaches students untruths which if repeated in an exam would be marked incorrect. For example in the derivation of the ideal diode equation, the author claims that both drift and diffusion currents flow from one side of the junction to the other, which when no bias is applied balance for both electrons and holes. In fact no drift currents flow across an ideal PN junction, since no carriers exist where there is an electric field. It is true that within the depletion layer, large diffusion and drift currents flow, which balance in thermal equilibrium so that the Fermi level is flat through the junction. However under bias, quite separate currents flow from one side of the junction to the other, which have nothing to do with drift. For a full explanation refer to the book by Muller & Kamins, "Device Electronics for Integrated Circuits" (2nd ed.), Wiley, 1986, ISBN 0471887587. Such fundamental errors are inexcusable in a book purporting to teach fundamentals.  2-PC JUNCTION BOX $5.64 Pan-Way¢î Low Voltage Surface Mount Outlet Boxes are one and two-gang style boxes for low voltage and or fiber optic applications. JBX3510**, JB1**, and JB1D** are supplied with adhesive backing? ? ? JBX3510, JB1FS and JB1FSD assembles without the use of screws for faster installation ? JBX3510, JB1, JB1D, JB1FS and JB1FSD are supplied with adhesive backing to speed installation ? JB1 and JB1D are a one-piece design requiring no assembly? ? Single Gang Two-Piece Snap Together Outlet Box with adhesive backing. Box accepts Pan-Way(R) Screw-On Faceplates or any NEMA standard single gang faceplate. For use with Pan-Way(R) T45 or LD Profile Raceway. 5.0"L x 3.3"W x 1.6"H. (127mm x 83mm x 41mm). Breakouts for 1/2" ,3/4" , or 1" diameter conduit. |
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