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Such a transistor is an NPN transistor. One of the outside layers is called the emitter, and the other is known as the collector. The middle layer is the base. The places where the emitter joins the base and the base joins the collector are called junctions.
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www.physlink.com/Education/AskExperts/ae430.cfm
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Bipolar junction transistor - Wikipedia, the free encyclopedia
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A bipolar (junction) transistor ( BJT ) is a three-terminal electronic device constructed of doped semiconductor material and may be used in amplifying or switching applications. Bipolar transis...
en.wikipedia.org/wiki/Bipolar_junction_transistor
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The Electronics Club ... Functional model of an NPN transistor ... The diagram shows the two current paths through a transistor. You can build this circuit with two standard 5mm red LEDs and any general purpose low power NPN transistor (BC108, BC182 or BC548 for example).
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www.kpsec.freeuk.com/trancirc.htm
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Generally transistors fall into the category of bipolar transistor, either the more common NPN bipolar transistors or the less common PNP transistor types. There is a further type known as a FET transistor which is an inherently high input impedance transistor with behaviour somewhat comparable to valves. ... The NPN transistor...
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www.electronics-tutorials.com/basics/transistors.htm
www.electronics-tutorials.com/basics/transistors.htm
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NPN 9GHz wideband transistor; High frequency circuit engineering - The IEE; [PDF] Oscillator Designer – CAD of Microwave Oscillators; [PDF] S-Pisces/Device3D; [PDF] AN423: Field Effect Transistor RF Amplifier Design Techniques; [PDF] New LDMOS Model Delivers Powerful Transistor Library— Part 2; EECS 397 Home Page;
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www.101science.com/transistor.htm
www.101science.com/transistor.htm
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The LM389 is an array of three NPN transistors on the same substrate with an audio power amplifier similar to the LM386. ... LM389 Low Voltage Audio Power Amplifier with NPN Transistor Array 194; Kbytes 7-Jan-96...
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www.national.com/opf/LM/LM389.html
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NPN General Purpose Amplifier; This device is designed as a general purpose amplifier and switch. The useful dynamic range extends to 100 mA as a switch and to; 100 MHz as an amplifier. Absolute Maximum Ratings* TA = 25°C unless otherwise noted;
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www.fairchildsemi.com/ds/2N/2N3904.pdf
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DATA SHEET; Product specification; Supersedes data of 1999 Apr 23; 2004 Oct 11; DISCRETE SEMICONDUCTORS; 2N3904; NPN switching transistor book, halfpage; M3D186;
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www.nxp.com/acrobat_download/datasheets/2N3904_4.pdf
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RadioShack.com- Buy - TIP31 NPN Transistor - The TIP31 Transistor has a power dissipation of 40W.. ... TIP31 NPN transistor - case type TO-220 (1)
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www.radioshack.com/product/index.jsp?productId=2062610
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