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Wireless bicycle computer
January 22, 2018This is a Wireless bicycle computer On the left you can find the circuit board and on the right the back of the LCD screen The white area is where you put the battery normally a 2032 button battery Post Views: 1
Tennis racket bug zapper
January 21, 2018Just found this interesting bug zapper in the shape of a tennis racket. This bug zapper can be used easily to catch a mosquito flying. Let’s see what the bug zapper contains A very simple circuit containing low voltage to a high-voltage Transformer See the wikipedia link for technical details https://en.wikipedia.org/wiki/Bug_zapper If you touch the […]
Dynamo flashlight
January 21, 2018This is the rest of my Dynamo flashlight after it fell on the ground On the bottom left you can see the winding of the Dynamo this is a fixed part and it’s connected to the LED and on the top right you can see the batteries that are charged by the Dynamo The left […]
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