Cat's Whisker

[boater sam]

Thanks Peter.

Do you know how you change the crystal?  Do you just chip out the old stuff until you have a good clean surface on the holder and then use some glue to keep the new crystal in place? Also, how do you make the electrical connection between the crystal and the holder? 

They were held in with low melting point metal, wood's metal comes to mind, so that there is good conductivity. You should be able to fit a new "crystal" using the old metal.
Never done it though.