An introduction to electronics
An introduction to electronics

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An introduction to electronics


This free course was written by Jeff Johnson. The interactives were created by Jane Bromley and Gareth Morgan. It was edited by Anna Edgley-Smith.

Except for third party materials and otherwise stated (see terms and conditions [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] ), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence.

The material acknowledged below is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this free course:

Every effort has been made to contact copyright owners. If any have been inadvertently overlooked, the publishers will be pleased to make the necessary arrangements at the first opportunity.


Course image © The Open University

Figure 2(a): GagliardiImages /

Figure 2(b): Ted Kinsman / Science Photo Library.

Figure 2(c): James King Holmes / Toshiba Research Europe / Science Photo Library.

Figure 4: © Littlebird Electronics.

Figures 5 and 6: Courtesy of Oxboard BV.

Figure 10: Screenshot from Multisim Live, © 2017 National Instruments Corporation. All rights reserved.

Figure 13: © Wellcome Images / This file is licensed under the Creative Commons Attribution Licence,

Figure 15(b): Olli Niemitalo. Used under Creative Commons licence CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.

Figure 17: Screenshot from Multisim Live, © 2017 National Instruments Corporation. All rights reserved. Photograph of LDR taken from

Figures 37, 38 and 39: Screenshots from Multisim Live, © 2017 National Instruments Corporation. All rights reserved.


Section 1 video 1: This video contains footage from the following sources. Transistor image: reused with permission of Nokia Corporation. Stargazing Live 2013, Episode 1: © BBC. Hyper Evolution: Rise of the Robots, Episode 1 ‘Technology’: A Windfall Films Production for BBC and Open University. Windfall is part of the Argonon Group. ‘Atlas’ – Robot Walking Demonstration: © Boston Dynamics. Integrated circuit image: courtsey of Texas Instruments Incorporated. BBC News – Robot Surgeon: © BBC. Stunning Aurora Borealis from Space in Ultra-High Definition: © NASA, Building the Universe (The Cosmos: A Beginner’s Guide): © BBC. City in the Sky, Episode 2 ‘Airborne’: © BBC. Mini Car Factory B-Roll – Robot Conveyor Belt: © MINI. Stargazing Live, Series 6, Episode 4: © BBC. Inside an integrated circuit foundry (Foxconn): © BBC. Elektro the Robot Demonstration: public domain.

Section 1 video 2: Image of gears © / tuchkovo. Wii Fit Plus footage © 2009 Nintendo. Animated binary matrix grid © / lutjo1953. All music tracks courtesy of Apple iLife. Note that brands are being used for pedagogical or teaching purposes only and they are not intended to be endorsement.

Section 1.2 video: Used with permission from Oxboard,

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