| GENERAL CHARACTERISTICS ITEM DESCRIPTION | HAS A PRECENTERED TUNGSTEN FILAMENT & EXTERNALLY VARIABLE BIAS CONTROL; EUCENTRIC GONIOMETER SPECIMAN STAGE W/ SPECIMAN EXCHANGE AIRLOCK; X-MOVEMENT: 15 MM,Y-MOVEMENT: 25 MM,Z-MOVEMENT: 31 MM,ROTATION: 360 DEG ENDLESS,TILT: 0-90 DEG; GUN ISOLATION VALVE |