How to Make Wireless Power Transmission In this video you will see how to make a simple wireless power transmitter and receiver. For this project you need enamelled copper wire 0.4-0.6 mm, 2N2222A ...

With surface-mount components quickly becoming the norm, even for homebrew hardware, the resistor color-code can sometimes feel a bit old-hat. However, anybody who has ever tried to identify a random ...

[Vincent] on the EEVblog forums had an idea for an inexpensive resistor substitution decade box. The build uses cheap decimal thumbwheel switches he bought on eBay. Each switch is wired up with ...