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  2. File:Transistor Simple Circuit Diagram with NPN Labels.svg

    en.wikipedia.org/wiki/File:Transistor_Simple...

    Date/Time Thumbnail Dimensions User Comment; current: 16:08, 31 August 2012: 720 × 720 (7 KB): Michael9422 {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|A simple NPN transistor amplifier circuit diagram with transistor labels.}} |Source = I created a postscript file, and converted it too SVG using the pstoedit program. |Date = ...

  3. Regency TR-1 - Wikipedia

    en.wikipedia.org/wiki/Regency_TR-1

    Regency TR1 schematic circuit diagram. The original TI prototype used eight transistors; when the company met with I.D.E.A. it used six. [2] The Regency TR-1 circuitry was refined from the TI design, reducing the number of parts, including two more expensive transistors.

  4. File:Radio Transmission Diagram en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Radio_Transmission...

    The Wikipedia will use its language if the SVG file supports that language. For example, the German Wikipedia will use German if the SVG file has German. To embed this file in a particular language use the lang parameter with the appropriate language code, e.g. [[File:Radio Transmission Diagram en.svg|lang=en]] for the English

  5. File:Single transistor radio circuit.svg - Wikipedia

    en.wikipedia.org/wiki/File:Single_transistor...

    The transistor both amplifies and rectifies the amplitude modulated (AM) radio signal. Since the base-emitter junction acts as a diode it conducts only on the positive half-cycles of the carrier wave, blocking the negative half cycles, rectifying the carrier to extract the audio modulation signal from the radio wave. The collector current is an ...

  6. Electronic symbol - Wikipedia

    en.wikipedia.org/wiki/Electronic_symbol

    An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to country, or engineering ...

  7. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    In contrast, a unipolar transistor, such as a field-effect transistor (FET), uses only one kind of charge carrier. A bipolar transistor allows a small current injected at one of its terminals to control a much larger current between the remaining two terminals, making the device capable of amplification or switching.

  8. Radio transmitter design - Wikipedia

    en.wikipedia.org/wiki/Radio_transmitter_design

    A radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. Radio waves are electromagnetic waves with frequencies between about 30 Hz and 300 GHz. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the ...

  9. Radio receiver design - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver_design

    The term radio receiver is understood in this article to mean any device which is intended to receive a radio signal in order to generate useful information from the signal, most notably a recreation of the so-called baseband signal (such as audio) which modulated the radio signal at the time of transmission in a communications or broadcast system.