-=> Mike Ross said to Greg Mayman
 -=> about "STILL AROUND" on 11-02-04  23:41.....

 MR> Crystals have various plane geometries along which they are cleaved or
 MR> cut. Since some planes have an NTC and some PTC, what a maker will
 MR> often do is to cut across these so that the resulting crystal is nearly
 MR> NP0. Also some cuts are parallel resonnance and others series
 MR> resonnance but one will see them used in TTL clocks quite
 MR> indiscriminately. Crystal making is a complex science and I don't
 MR> pretend to know it well. 

I remember the AT cuts, and there were some others whose names I
can't recall, but I can't remember anything about their
characteristics.

It's probably all there in my reference books, but right at this
moment I'm too lazy to look it up ;-)


   ,-./\
  /     \ From Greg Mayman, in beautiful Adelaide, South Australia
  \_,-*_/    "Queen City of The South"    34:55 S  138:36 E
       v

... Brains by Tequila, body by the table on the floor.
___ Blue Wave/386 v2.30

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