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Adamas Proto and Pre-Prod Documents - Technical References

71 items in Technical References → Adamas Proto and Pre-Prod Documents

All Adamas Proto and Pre-Prod Documents 71 Bracing 10 Bridge 63 Color 149 Epaulet 74 Headstock 187 Label 91 Rosette 45 Trc 17 Collector Inlay 26 Preamp 30
All Adamas Proto and Pre-Prod Documents 71 Bracing 10 Bridge 63 Color 149 Epaulet 74 Headstock 187 Label 91 Rosette 45 Trc 17 Collector Inlay 26 Preamp 30
Ovation Guitar #65 Internal Research/QC Document - Model 1187-8 S/N 0065 Adamas Proto and Pre-Prod Documents

Ovation Guitar #65 Internal Research/QC Document - Model 1187-8 S/N 0065

1977

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Ovation Guitar #65 Internal Research/QC Document - Model 1187-8 S/N 0065
1977 · US

Ovation Guitar #65 Internal Research/QC Document - Model 1187-8 S/N 0065

Year: 1977

This is an internal Ovation guitar research or quality control document dated 1/5/77, covering Guitar #65, specifically Model #1187-8 with Serial Number 0065 featuring new core wood construction. The first page details physical specifications including top construction, bridge measurements, brace weights, and deflection/stiffness measurements (RL, SN, K columns). The second page, dated 4/1/77, contains a frequency response graph (acoustic analysis) for Guitar #65, plotting decibel output across the audible frequency spectrum from approximately 30 Hz to 9000 Hz, with notable resonance peaks and nulls annotated.

Ovation Guitar #69 Internal Research and Development Test Document Adamas Proto and Pre-Prod Documents

Ovation Guitar #69 Internal Research and Development Test Document

1977

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Ovation Guitar #69 Internal Research and Development Test Document
1977 · US

Ovation Guitar #69 Internal Research and Development Test Document

Year: 1977

This is an internal Ovation Guitar Company research and development document tracking the acoustic testing and measurement history of guitar unit #69 (S/N 0069), Model #1687-7, from its initial construction in December 1976 through multiple evaluations in 1977. The document includes detailed bracing specifications, deflection measurements (RL, SN, K columns), and qualitative sound assessments by evaluators including references to 'Bill, CHK and Dadi.' Two frequency response charts (acoustic spectrum analyzer plots) are included, dated 8/23/77 and 12/1/77, showing the guitar's acoustic output in decibels across the full frequency range.

Ovation Guitar #70 Internal Test/Specification Record - Model 1687-7, S/N 0070 Adamas Proto and Pre-Prod Documents

Ovation Guitar #70 Internal Test/Specification Record - Model 1687-7, S/N 0070

1977

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Ovation Guitar #70 Internal Test/Specification Record - Model 1687-7, S/N 0070
1977 · US

Ovation Guitar #70 Internal Test/Specification Record - Model 1687-7, S/N 0070

Year: 1977

This is an internal Ovation guitar engineering document (not a catalog or brochure) consisting of a specification/measurement record sheet and an acoustic frequency response graph for guitar #70, Model 1687-7, Serial Number 0070. The specification sheet dated 12/14/76 details construction parameters including top type, bridge dimensions, brace weights, and deflection measurements (RL, SN, K), with a follow-up entry dated 6/8/77 noting it was used as a show guitar on pedestal and not sound tested. The accompanying frequency response chart, dated 7-11-77 and signed by technician D. Johnson, shows the acoustic output in dB across the full frequency spectrum from approximately 30 Hz to 8372 Hz, with notable resonance peaks annotated at frequencies such as 94, 177, 477, 556, and 816 Hz.

Ovation Guitar #72 Internal R&D Description and Measurement Log Adamas Proto and Pre-Prod Documents

Ovation Guitar #72 Internal R&D Description and Measurement Log

1977

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Ovation Guitar #72 Internal R&D Description and Measurement Log
1977 · US

Ovation Guitar #72 Internal R&D Description and Measurement Log

Year: 1977

This is an internal Ovation research and development document tracking the construction, measurement, and acoustic testing of guitar serial number 0072, model 1687-7/1687-8, spanning from December 1976 through July 1977. The document records detailed physical measurements of string deflection (RL, SN, K, FF columns), brace weights, and modifications made to improve sound quality including filing braces and adding carbon reinforcement. The final page includes a frequency response graph taken by technician D. Johnson on 7-11-77, showing the acoustic output spectrum of the instrument from approximately 30 Hz to 9000 Hz.

Ovation Guitar #76 Internal Research/QC Document - Model 1689-8 Build Specs and Frequency Response Analysis Adamas Proto and Pre-Prod Documents

Ovation Guitar #76 Internal Research/QC Document - Model 1689-8 Build Specs and Frequency Response Analysis

1977

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Ovation Guitar #76 Internal Research/QC Document - Model 1689-8 Build Specs and Frequency Response Analysis
1977 · US

Ovation Guitar #76 Internal Research/QC Document - Model 1689-8 Build Specs and Frequency Response Analysis

Year: 1977

This is an internal Ovation guitar research or quality control document from 1977 pertaining to guitar unit #76, a Model 1689-8 (S/N 0076). The first page (dated 1/5/77) details construction specifications including top wood, bridge dimensions, brace weights, and thickness measurements across RL, SN, K, and FF categories. The second page (dated 8/23/77) contains a frequency response graph plotting decibel output across the audible spectrum, with numerous resonance peaks and troughs annotated with specific frequency values.

Ovation Guitar Internal Production Record #64 - Model 1187-2 S/N 0064 Adamas Proto and Pre-Prod Documents

Ovation Guitar Internal Production Record #64 - Model 1187-2 S/N 0064

1977

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Ovation Guitar Internal Production Record #64 - Model 1187-2 S/N 0064
1977 · US

Ovation Guitar Internal Production Record #64 - Model 1187-2 S/N 0064

Year: 1977

This is an internal Ovation guitar factory production or inspection record dated January 5, 1977, documenting specifications for Model #1187-2, Serial Number 0064. The document records detailed measurements including top thickness at various points (RL and SN columns), bracing weights, bridge dimensions, and a total weight of 240.3 grams for the top assembly with bridge and braces. It notes the use of new core wood for the top construction with a 60-degree top angle.

Ovation Guitar Internal R&D Documentation - Guitar #73, Model 1687-8, S/N 0073 Adamas Proto and Pre-Prod Documents

Ovation Guitar Internal R&D Documentation - Guitar #73, Model 1687-8, S/N 0073

1977

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Ovation Guitar Internal R&D Documentation - Guitar #73, Model 1687-8, S/N 0073
1977 · US

Ovation Guitar Internal R&D Documentation - Guitar #73, Model 1687-8, S/N 0073

Year: 1977

This is an internal Ovation Guitar Company research and development document dated 1976-1977, containing construction specifications and acoustic testing data for guitar unit #73, Model 1687-8, Serial Number 0073. The first page records physical measurements including top thickness, bridge dimensions, brace weights (totaling 233.6g), and deflection readings (RL, SN, K columns) taken on 12/14/76 and 6/8/77. The second page shows a frequency response graph (30 Hz to 9397 Hz) generated by technician D. Johnson on 7-11-77, with notes describing it as having 'excellent sound' and being 'best of the lot' among units #71-74.

Ovation Guitar Internal R&D Test Record - Model 1687, S/N 0075 (#75) Adamas Proto and Pre-Prod Documents

Ovation Guitar Internal R&D Test Record - Model 1687, S/N 0075 (#75)

1977

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Ovation Guitar Internal R&D Test Record - Model 1687, S/N 0075 (#75)
1977 · US

Ovation Guitar Internal R&D Test Record - Model 1687, S/N 0075 (#75)

Year: 1977

This is an internal Ovation guitar research and development document from 1976-1977, detailing construction specifications and acoustic measurements for guitar #75 (Model 1687-8/7, Serial Number 0075). The first page records build details including top bracing weights, bridge dimensions, and notes about sound testing, while the second page contains a frequency response graph (db vs Hz) measured by technician D. Johnson on 7-11-77, showing resonance peaks and acoustic behavior across the full audible spectrum.

Ovation Guitar Model #1687-8 Internal Description Sheet #74 (January 1977) Adamas Proto and Pre-Prod Documents

Ovation Guitar Model #1687-8 Internal Description Sheet #74 (January 1977)

1977

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Ovation Guitar Model #1687-8 Internal Description Sheet #74 (January 1977)
1977 · US

Ovation Guitar Model #1687-8 Internal Description Sheet #74 (January 1977)

Year: 1977

This is an internal Ovation factory description sheet dated January 5, 1977, documenting specifications for Model #1687-8, Serial Number 0074. The document records construction details including a new core wood top with bridge, bridge brace, and braces, along with precise measurements for resonance levels (RL), signal noise (SN), and K values at multiple test points. Brace weights and positions are meticulously logged, with a total recorded weight of 230.

Ovation Adamas 1187-2 Guitar #47 Internal R&D Test Document Adamas Proto and Pre-Prod Documents

Ovation Adamas 1187-2 Guitar #47 Internal R&D Test Document

1976

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Ovation Adamas 1187-2 Guitar #47 Internal R&D Test Document
1976 · US

Ovation Adamas 1187-2 Guitar #47 Internal R&D Test Document

Year: 1976

This is an internal Ovation research and development document dated 1976, describing acoustic testing and measurement data for guitar #47, a 6-string acoustic Model #1187-2 (Adamas) with serial number 0048. The document records top construction details including brace weights, stiffness measurements (RL, SN, K, FF), and sound testing conducted at Moosup, CT. The second page contains a frequency response graph (30 Hz to 8372 Hz) measured by technician D. Johnson on 11-29-76, noting that overall amplitude is probably too low by 2.5 dB.

Ovation Adamas 1187-2 Guitar #48 Internal Research/Testing Document Adamas Proto and Pre-Prod Documents

Ovation Adamas 1187-2 Guitar #48 Internal Research/Testing Document

1976

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Ovation Adamas 1187-2 Guitar #48 Internal Research/Testing Document
1976 · US

Ovation Adamas 1187-2 Guitar #48 Internal Research/Testing Document

Year: 1976

This is an internal Ovation research and development document from 1976 detailing the construction specifications and acoustic testing of an Adamas model 1187-2 guitar (S/N 0048). The first page records top thickness measurements, brace weights, deflection readings, and installation notes including sound testing at Moosup. The second page contains a frequency response graph dated 11-29-76, tested by technician D. Johnson, showing the acoustic output of guitar number 0048-95 across the full audible spectrum with annotated resonance peaks and a note that overall amplitude may be too low by 2.5 dB.

Ovation Adamas 1187-8 Guitar #54 Internal R&D Testing Documentation (1976) Adamas Proto and Pre-Prod Documents

Ovation Adamas 1187-8 Guitar #54 Internal R&D Testing Documentation (1976)

1976

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Ovation Adamas 1187-8 Guitar #54 Internal R&D Testing Documentation (1976)
1976 · US

Ovation Adamas 1187-8 Guitar #54 Internal R&D Testing Documentation (1976)

Year: 1976

This is an internal Ovation research and development document from 1976 detailing the construction specifications and acoustic testing of an Adamas model 1187-8 guitar (S/N 0054). The first page records physical measurements including top angle, weight, bridge dimensions, and brace positions logged across multiple dates in August and November 1976. The second page contains a frequency response graph (dB vs Hz) produced by technician D. Johnson on 11-30-76, showing the acoustic resonance profile of the completed instrument with a handwritten note indicating the overall amplitude may be too low by 7.5 dB.

Ovation Adamas 1687-2 Guitar #60 Internal R&D Testing Document Adamas Proto and Pre-Prod Documents

Ovation Adamas 1687-2 Guitar #60 Internal R&D Testing Document

1976

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Ovation Adamas 1687-2 Guitar #60 Internal R&D Testing Document
1976 · US

Ovation Adamas 1687-2 Guitar #60 Internal R&D Testing Document

Year: 1976

This is an internal Ovation research and development document from 1976 detailing the construction specifications and acoustic testing of an Adamas model 1687-2 guitar with serial number 0060. The first page includes detailed build notes such as top angle, brace dimensions, bridge measurements, and deflection readings (RL, SN, K, FF columns), with entries dated between 10/19/76 and 11/2/76. The second page contains a frequency response graph measured by technician D. Johnson on 11-30-76, annotating key resonance peaks and a note that overall amplitude is probably too low by 2.5 dBa.

Ovation Adamas 1687-7 Guitar #0051 Internal R&D Test Document Adamas Proto and Pre-Prod Documents

Ovation Adamas 1687-7 Guitar #0051 Internal R&D Test Document

1976

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Ovation Adamas 1687-7 Guitar #0051 Internal R&D Test Document
1976 · US

Ovation Adamas 1687-7 Guitar #0051 Internal R&D Test Document

Year: 1976

This is an internal Ovation research and development document from 1976 detailing the construction specifications and acoustic testing of an Adamas model 1687-7 guitar with serial number 0051. The first page records physical measurements including top thickness, brace weights, rim dimensions, and resonance levels (RL/SN/K) taken at multiple dates between July and November 1976. The second page shows a frequency response spectrum analysis chart conducted by technician D. Johnson on 11-30-76, with annotated resonance peaks and a handwritten note that 'overall amplitude is probably too low by 2½ dBa'.

Ovation Adamas 1687-8 Guitar #0045 Internal Research and Acoustic Testing Document Adamas Proto and Pre-Prod Documents

Ovation Adamas 1687-8 Guitar #0045 Internal Research and Acoustic Testing Document

1976

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Ovation Adamas 1687-8 Guitar #0045 Internal Research and Acoustic Testing Document
1976 · US

Ovation Adamas 1687-8 Guitar #0045 Internal Research and Acoustic Testing Document

Year: 1976

This is an internal Ovation research document from 1976 detailing the construction specifications and acoustic measurements of an Adamas model 1687-8 guitar, serial number 0045. The first page records construction details including top angle, brace weights, bridge dimensions, and deflection measurements taken at multiple stages between July and November 1976. The second page contains a frequency response graph (sound spectrum analysis) conducted by technician D. Johnson on November 30, 1976, showing the acoustic output of the guitar across a wide frequency range with a note that overall amplitude is probably too low by 2.5 dB.

Ovation Adamas 1687-8 Guitar #44 Engineering/Acoustic Test Document Adamas Proto and Pre-Prod Documents

Ovation Adamas 1687-8 Guitar #44 Engineering/Acoustic Test Document

1976

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Ovation Adamas 1687-8 Guitar #44 Engineering/Acoustic Test Document
1976 · US

Ovation Adamas 1687-8 Guitar #44 Engineering/Acoustic Test Document

Year: 1976

This is an internal Ovation engineering document from 1976 detailing the construction specifications and acoustic testing of an Adamas model 1687-8 guitar with serial number 0044. The first page records build details including top configuration, brace weights, bridge dimensions, and measurement data logged on 7/2/76, 11/2/76, and 11/19/76. The second page contains a frequency response chart (sound comparison test dated 11-29-76) conducted by technician D. Johnson, with a handwritten note indicating overall amplitude was considered too low by approximately 2 dB.

Ovation Adamas Guitar #49 Research and Development Documentation Adamas Proto and Pre-Prod Documents

Ovation Adamas Guitar #49 Research and Development Documentation

1976

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Ovation Adamas Guitar #49 Research and Development Documentation
1976 · US

Ovation Adamas Guitar #49 Research and Development Documentation

Year: 1976

This is an internal Ovation R&D document from 1976 detailing the construction specifications and acoustic frequency response testing of Guitar #49, an Adamas model 1687-7 (S/N 0049). The document includes detailed top bracing measurements, bridge weights, rim thickness data, and two frequency response graphs comparing the guitar's acoustic output across the full audible spectrum. The second frequency response chart, dated 11-29-76, was produced by technician D. Johnson and includes a handwritten note indicating the overall amplitude was 'probably too low by 25 dBs.'

Ovation Guitar #0038 Quality Control and Acoustic Analysis Records Adamas Proto and Pre-Prod Documents

Ovation Guitar #0038 Quality Control and Acoustic Analysis Records

1976

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Ovation Guitar #0038 Quality Control and Acoustic Analysis Records
1976 · US

Ovation Guitar #0038 Quality Control and Acoustic Analysis Records

Year: 1976

This is an internal Ovation guitar factory quality control document for guitar number 0038, Model #1687-7, Serial Number 0038-91, initiated by technician K. Loggins on 4/15/76. The document includes multiple inspection entries (#38-1 through #38-4) tracking measurements of resonance levels (RL), signal-to-noise ratios (SN), and other acoustic parameters across several dates in April–August 1976. Two frequency response charts dated 9/10/76 (approved) and 9/23/76 (received) show acoustic output measurements in dB across the full frequency spectrum, with key resonance peaks annotated.

Ovation Guitar #0039 Internal Research and Development Test Document Adamas Proto and Pre-Prod Documents

Ovation Guitar #0039 Internal Research and Development Test Document

1976

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Ovation Guitar #0039 Internal Research and Development Test Document
1976 · US

Ovation Guitar #0039 Internal Research and Development Test Document

Year: 1976

This is an internal Ovation research and development document for guitar number 0039, Model #1687-8, Serial Number 0039-98, dated between April and September 1976. The first page contains detailed construction specifications including top angle, bracing measurements, bridge dimensions, and deflection/resonance data recorded across multiple test sessions (#39, #39-2, #39-1). The second page is a frequency response graph (spectrum analysis) recorded approximately 9/10/76, showing the acoustic output of the guitar measured in decibels across a frequency range from 30 Hz to 9397.2 Hz.

Ovation Guitar #0040 Internal Research and Testing Document Adamas Proto and Pre-Prod Documents

Ovation Guitar #0040 Internal Research and Testing Document

1976

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Ovation Guitar #0040 Internal Research and Testing Document
1976 · US

Ovation Guitar #0040 Internal Research and Testing Document

Year: 1976

This is an internal Ovation guitar research and quality control document for guitar number 0040, model #1687-8 with serial number 0040-95, dated approximately 1976. The first page contains detailed construction specifications including top angle, weight measurements, bridge dimensions, and individual brace weights totaling 42.7 grams, along with installation notes dated 8/3/76. The second page shows a frequency response graph dated approximately 9/10/76, plotting the acoustic output in decibels across a wide frequency range from 30 Hz to over 9000 Hz, with notable resonance peaks annotated at frequencies such as 95, 101, 550, and 730 Hz.

Ovation Guitar #0041 Build Specification and Acoustic Response Log Adamas Proto and Pre-Prod Documents

Ovation Guitar #0041 Build Specification and Acoustic Response Log

1976

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Ovation Guitar #0041 Build Specification and Acoustic Response Log
1976 · US

Ovation Guitar #0041 Build Specification and Acoustic Response Log

Year: 1976

This is an internal Ovation factory document for guitar number 0041, a Model #1687-8 with serial number 0041-97, containing detailed construction specifications including top bracing weights, bridge weight, and rim weight. The document also includes a frequency response graph dated approximately 9/10/76, showing the acoustic output of the completed instrument across a wide frequency range. Additional notes reference installation on bowl dated 8/3/76 and the presence of carbon splines on the neck.

Ovation Guitar #22 Research and Development Testing Log Adamas Proto and Pre-Prod Documents

Ovation Guitar #22 Research and Development Testing Log

1976

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Ovation Guitar #22 Research and Development Testing Log
1976 · US

Ovation Guitar #22 Research and Development Testing Log

Year: 1976

This is an internal Ovation research and development document chronicling the iterative construction, modification, and acoustic testing of experimental guitar #22 between May 1975 and March 1976. The document records detailed measurements of top deflection (RL, SN, K columns), bracing changes, bridge modifications, and frequency response plots taken with a microphone 4 inches from the sound hole. Multiple versions of the guitar (labeled #22 through #22-16) are tracked with precise notes on structural changes and their acoustic outcomes.

Ovation Guitar #25 Internal R&D Description and Sound Evaluation Report Adamas Proto and Pre-Prod Documents

Ovation Guitar #25 Internal R&D Description and Sound Evaluation Report

1976

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Ovation Guitar #25 Internal R&D Description and Sound Evaluation Report
1976 · US

Ovation Guitar #25 Internal R&D Description and Sound Evaluation Report

Year: 1976

This is an internal Ovation research and development document describing the construction details, measurements, and sound evaluation of experimental guitar prototype #25 and its variants (#25-1, #25-2). The document covers technical specifications including top materials (striated graphite SG-2), bracing weights, hole patterns, and deflection measurements recorded between December 1975 and January 1976. Sound evaluation notes indicate the guitar lacked bass and mid-range body, with modifications attempted including brace trimming, saddle adjustments, and addition of a long bridge brace.

Ovation Guitar #26 Internal R&D Testing and Acoustic Frequency Response Documentation Adamas Proto and Pre-Prod Documents

Ovation Guitar #26 Internal R&D Testing and Acoustic Frequency Response Documentation

1976

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Ovation Guitar #26 Internal R&D Testing and Acoustic Frequency Response Documentation
1976 · US

Ovation Guitar #26 Internal R&D Testing and Acoustic Frequency Response Documentation

Year: 1976

This is an internal Ovation research and development document from 1975-1976 detailing the construction specifications and acoustic testing of experimental guitar prototype #26 and its variants (#26-1 through #26-4). The document includes detailed construction notes such as waffle top dimensions, brace weights, bridge measurements, and deflection readings (RL, SN, K, FF columns). Four frequency response charts (spanning approximately 30 Hz to 9397 Hz) for guitar #26-3 are included, dated from March 15 to April 18, 1976, with handwritten annotations noting sound quality assessments including a comparison to guitar #28-5 and comments from players including 'J. Messina.'

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