Ovation Guitar #37 Engineering/Testing Data Sheet - Model 1689-8, M. Dadi
Year: 1976
This is an internal Ovation guitar engineering and quality control data sheet dated 3/15/76 for a custom guitar built for M. Dadi, identified as item #37, Model #1689-8, S/N 0037. The document records detailed construction specifications including top angle, brace dimensions, bridge measurements, and rim width. It also contains three successive measurement test entries (#37-1, #37-2, #37-3) tracking resonance levels (RL), signal-to-noise (SN), and other acoustic parameters at various load points (.25, .50, 1.0) across multiple dates in March and June 1976.