DIY AIR VARIABLE CAPACITOR
LED VU Level in 20cents
Good Powerbank From 1$ Powerbank Case
Almost Free Good Looking Soldering Stand
30seconds Nailpolish PCB
Make Colored Volume Knobs
Easy 2$ Radio WalkieTalkie
The Amazing Tower Vu
IR Stereo Nightvision
Paper Circuit Board (P!.C.B)
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