From the Marketing Specifications pdf:SPECIFICATIONS
CRT
15" Trinitron CRT with Short Neck CRT Design
90° deflection
Viewable Image Size
14.0" measured diagonally
Aperture Grille Pitch
0.25mm
Horizontal Scan Range
30-70kHz
Vertical Scan Range
50-120Hz
Max Resolution and Refreshed Rate
1280 x 1024 @ 60Hz
1024 x 768 @ 85Hz
---Hope this helps.