an interetsing happening at a hamfest

My wife (kd8ctl) and were at a ham fest she picked up a curious looking item and asked me what what it was, I did not recnize it she looked at at a mintue said it might a c appiter and sure enough it it was a big one given she is a fina rts major and has learned what she knows about electronics from Me and Gordon west mostly I was impressed even if she did show sho me up a bit in my own feild