CircuitGeek

In present days, there is many type of headphone amp kits available on the market. However, majority of them are not as good as they’ve claimed. In fact, they’re costing up to hundreds of dollars and consuming a lot of energy!
For those who want to try out something cheaper and energy saving headphone amp kit, [...]

You love to play remote control toys? If you did, then this mikrokopter is what you’re been searching all the time…

This mikrokopter is simply a cool and fun to play gadget. That of the awesome features includes:

Audio Voltage Output to track the batteries availability.
Multiple graphs [...]