During the talk he spilled the beans on the quartz crystal hanging off the front side of every PCB. Continue reading “DEF CON 27: The Badge Talk; Or That One Time Joe Grand Sourced 30,000 ...
In the case of dielectric crystals, this has been demonstrated by de Haas and Biermasz l, who measured the effect of heat treatment on the conductivity of a quartz crystal in the liquid-hydrogen ...