Hack-A-Day friend [Limor] AKA [ladyada] has been promising a portable RF jammer for a while. guess what she sent me for Christmas? The Wave-bubble is a self tuning RF jammer – good for around 20 ...

With the jammer powered up, we can clearly see how the ... the 555 timer has fallen in with the wrong crowd. On one side of the PCB we can see there are only two major components, a 78M05 ...