Classical Guitar Study - classical study brace overview (12/12/77)

This is an internal Ovation technical document dated December 12, 1977, recording measurement data for various guitar models including 'A' Brace and Classic guitar categories. The document compares results from old and new testing systems, noting that the new tester measures tighter than the old tester with specific tightness correction factors listed for different parameters. Models tested include various Ovation prototypes, classical guitars, and competitor instruments like Takamine, Kohno, and Bills Euro Classic.