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Electronics Education

Electronics Education is a new website to support the teaching and learning of Electronics in schools. A wealth of information is provided to help in the purchase and use of tools and equipment, information on circuits and projects suitable for both GCSE and A level electronics. The circuits and projects have been made at KS3, KS4 and KS5, and actually work. A worksheet is provided for each circuit providing a diagram, bill of materials (parts list) with order codes and a brief description as to how the circuit works.

There are also a series of worksheets that can be downloaded.

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CONDUCTIVE THREAD £27.48 Electrical Characteristics The thread has a resistance of approximately 0.65 ohm / cm, or 20 ohm / foot. This is quite sufficient for, say, powering LEDs over quite large distances. Resistance does not vary significantly from one length of thread to the next as some are reported to do, so you should be able to use this thread without concern for "dead" sections . Physical Characteristics The thread has a breaking strain of around 9.3 pounds (4.2 kilos). It comprises roughly 96 individual filaments, each coated with a micron-thick layer of natural silver. In construction, 16 of these filaments are wound together to form an initial twist; two of these twists are then twisted together, and finally three of these twists are combined to form the finished thread. In thread terms, it's around 18 denier. In terms understandable to me, it's a little heavier than a regular sewing thread, but not as heavy as an upholstery thread. It can be sewn on most domestic sewing machines using either a regular needle or the next size up. This thread does not fray. As far as I can tell, there are no loose ends of filaments except where they have been cut. The filaments are very smooth, so there are no fine tendrils as you will find with a cotton thread. This used to result in a lack of cohesion in the thread, resulting in "bunching" at the needle when machine sewing; this is no longer the case. find out more	OSRAM 64478 HALOLUX CERAM ES 150W 240V £8.94 A Dimmable 150W 240V ES clear Halolux Ceram lamp with an average life of 2000 hours. find out more	INA168NA-250 RoHS £2.15 (24 or fewer items) £1.91 (25 to 99 items) £1.67 (100 to 249 items) £1.42 (250 or more items) The INA168 is a high-side, unipolar, current shunt monitors Wide input common-mode voltage range, low quiescent current, and tiny SOT23 packaging enable use in a variety of applications. Input common-mode and power-supply voltages are independent and can range from 2.7V to 60V. Quiescent current is only 25ìA, which permits connecting the power supply to either side of the current measurement shunt with minimal error. The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting, the INA168 is available in SOT23-5 and is specified for the –40°C to +125°C temperature range. find out more

LM393N RoHS £0.14 (99 or fewer items) £0.11 (100 to 499 items) £0.10 (500 to 999 items) £0.08 (1000 or more items) A dual voltage comparator in an 8 pin DIL package. Very low supply current and low power find out more