[Harp-L] Harp mic repairer?

[MundHarp@xxxxxxx]

My venerable JT-30 "Crystal Balls" harmonica mic has become another  victim 
of the extremes of  the Arizona USA temperature variation... Last  week 
going from "The Valley of the Sun" up into the freezing cold Arizona  
mountains, my JT-30 failed... In the cold there was no output from it at all.  When 
the mic warmed back up, it started to work again, but at a fraction  of its 
previous volume.
I'm NO genius... (LOL)  But I guess it needs a new crystal.
I'm incapable of fixing it myself.
Any suggestions?
 
Best wishes
 
 
 
John "Whiteboy" Walden,
English harmonica player.
(Who lives in the Philippines.)
Just now in Phoenix, AZ, USA.