30th May: Added Lesson 18 all about counters

21st May: Updated all counter pages with PowerPoint and documents as well as corrections to the actual webpages. Updated binary, decade counter, BCD counter, display driver, 7-segment displays and the 4026 counter pages

20th February 2022: Lesson 17 published covering bistable circuits and D-Type flip-flop circuits. New PowerPoint added to these pages along with downloadable pdf documents and questions.

29th December: Lesson 19 published covering Schmitt inverter circuits. Schmitt inverter page updated to include switch de-bouncing

30th October: Lesson 16 published covering capacitors, RC circuits, monostables and astables

3rd September: Circuit building pages updates with documents and a new video showing how to build on protoboard (also on YouTube)

1st September: Miscellaneous GCSE specific resources added to main page - information about coursework and using Yenka software

30th August: Lesson 15 published - all about logic circuits

27th August: NAND Logic and Boolean Algebra pages updated with PowerPoint, documents, questions and Interactive White Board videos

20th August: Combinational Logic pages updated with PowerPoint, questions and videos. Links page updated

11th May: Lesson 14 published - systems approach and switches. System diagrams page updated

20th March: Diodes and LEDs PowerPoint updated. Zener diode PowerPoint added. Lesson 13 published - Diodes, LEDs and Zener diodes

25th February: MOSFET page and PowerPoint updated. Lesson 12 published - MOSFETs. Credits and Links updated

6th January 2021: Bipolar Transistor page updated. Lesson 11 uploaded - Bipolar Transistors. New Interactive White Board added, PowerPoint updated

27th December: Comparator page updated with details of current source and sink. Lesson 10 uploaded - Comparators. Two new videos added, one about current sources and sinks and one about designing an Op-Amp comparator circuit (also on YouTube)

19th December: Lesson 9 uploaded - potential dividers. New PowerPoint added and webpage updated. Links on documents updated

22nd November: Lesson 8 uploaded - Series and Parallel resistors. New PowerPoint added and webpage updated

10th October: Lesson 7 uploaded - Power and Energy. New videos, IWB and questions with updated webpage and PowerPoint

7th September: Lesson 6 uploaded - Identifying Resistors. New IWB presentation and questions with updated PowerPoint and notes

24th August: Lesson 5 uploaded - multimeters. New PowerPoint added. Videos from previous lessons added to YouTube

13th August: Lesson 4 uploaded - resistance. New IWB presentation and PowerPoint. Resistance and resistors separated as two different pages

4th August: Lesson 3 uploaded - simple circuits. New PowerPoint and documents for simple circuits page

22nd July: Lesson 2 uploaded - components, units and prefixes

22nd July: Units and Prefixes page added. PowerPoint, questions and quizzes added for components and units

10th July: Circuit component page added

6th July: LESSONS section added with the first lesson about electrical safety and domestic electricity

5th May: RC Timing Networks page added

2nd May: npn Bipolar transistor transfer characteristics video uploaded (and YouTube) and menu pages for resources re-designed

30th April: MOSFET page updated to include transfer characteristics and video added (also YouTube)

30th April: Schmitt Inverter page and video added (also on YouTube).

21st April 2020: Zener Diode Calculation IWB added (also YouTube) ... it's been a while

28th May: 4511 Decoder page added and 4510 page updated

27th May: 7 Segment Display page added

12th April: 4510 BCD Counter page added

8th April: Zener diode page added

3rd April: 4026 Decade counter page and video added (also on YouTube). Non-Inverting Amplifier Gain derivation Interactive Whiteboard added (also on YouTube)

12th February: Summing Amplifier IWB added (also on YouTube. Astable page updated to include enable Pin 4. Website format updated

14th January: Non-Inverting and Summing Amplifier videos added along with Inverting Amplifier gain Interactive White Board (also on YouTube)

13th January: Boolean algebra page added. 555 timer page updated

2nd January 2019: Monostable and Astable PowerPoint added. Astable page updated to include mark - space ratio and relaxation oscillator

21st December: Inverting amplifier video added (also on YouTube), PowerPoint presentations added for LEDs, Logic Gates and Logic Circuits. 4000 series datasheets updated

18th December: Summing amplifier page added, index page updated, pdf documents added for electrical safety

18th October: Non-Inverting Amplifier page added and Inverting Amplifier page updated

16th October: Inverting Amplifier page added

9th September: All PowerPoint Presentations updated with new style to ensure all images are free to use

August: Website redesigned

31st May: Zener diode and RC Time Constant videos added (also on YouTube)

5th May: Binary Counter page added

16th April: Binary Counter video added in the resources area

7th April: Binary numbers page added

2nd April: Updated Index, Astable, Bipolar and MOSFET pages

4th Janaury 2018: Logic Circuits page added

20th December: HiFi page updated

18th December: System Diagrams page added

28th November: NAND Gate equivalent logic page added

25th November: Diode page updated with PowerPoint, Power page updated

31st May: Videos about the 4017 Counter, D-type flip-flop and Divide by Two counter all added. Also on YouTube

30th May: Relay PowerPoint added

7th May: Relay video uploaded, also on YouTube. IWB videos for 555 timer calculations uploaded, also on YouTube. Relay webpage added

6th May: MOSFET Webpage and PowerPoint uploaded

17th February: MOSFET as transducer driver Video added, also on YouTube

17th February: Bipolar transistor webpage, video and PowerPoint added, also on YouTube

14th February: Comparator video uploaded, also on YouTube

11th January: LED page added

8th January: Diode video and Regulator video uploaded - also on YouTube

8th January: Power Supply page updated and Power Supply PowerPoint added. Radio page updated and Radio PowerPoint added

7th January: Diode page added.

6th January 2017: Series and Parallel Examples IWB video uploaded - also on YouTube

29th December: Comparator circuit PowerPoint uploaded

23rd December: Voltage regulator page updated, images added to power supply page

21st December: Comparator page updated

16th December: Rectification video uploaded (also on YouTube)

26th October: LED Series Resistor calculations IWB video uploaded (also to YouTube)

26th October: RMS and Peak Voltage video uploaded (also to YouTube)

22nd October: Op Amp overview page updated

21st October: Analogue Signals page updated

18th October: Power Amplifier page added

1st September: Switches and Buttons page added

12th August: 555 Astable video uploaded (also on YouTube)

10th August: Uploaded new D-type flip-flop page

28th July: Updated 555 Summary page

27th July: Three IWB explanations of Bistable circuits uploaded (also on YouTube)

26th July: 4017 Counter page updated

21st July: Updated pin layout page

20th July: Bistable page published & Bistable video uploaded

1st June: A.M. and F.M. video added

31st May: Radio and HiFi pages updated - new layout and text

31st May: This page added