From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Test log sheet for various dynamos, recording outputs, settings, and remarks.
| Identifier | ExFiles\Box 70\4\ scan0052 | |
| Date | 30th April 1925 | |
| Top Header: X.8660. R.R. EAC. DYNAMO. X.8781do. Right Margin (vertical): X.8781do Column Headers: Date. Dynamo number. (1) Remarks. (2)(3)(4) Remarks. (5) Output at 1050 rpm. Amperes. (9.5 to 10.5) Volts. (14.6 to 14.8). (6) C.C. Volts at 550 rpm. (=>13.6). (7) (8) (9) (10) Remarks. Brush setting angles. Data Rows: Row 1: Date: 30-4-25 Dynamo number: GU85 (1) Remarks: Main Brush. Control, 18 oz 11 oz, .040 from brush-holder to comm (2)(3)(4) Remarks: 15.7, OK (5) Output: Amperes: 10.5, Volts: 14.6 (6) C.C. Volts: 15.7 (9)(10) Remarks: OK Brush setting angles: main 14 1/4 segments, control 16 3/4 Row 2: Date: 1-5-25 Dynamo number: ST15 (1) Remarks: 14 oz . 11 oz, .041" (2)(3)(4) Remarks: 20 Ω, OK (5) Output: Amperes: 10., Volts: 14.8 (6) C.C. Volts: 14.3 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 Row 3: Date: 5.5.25 Dynamo number: ST35 (1) Remarks: 14 oz 11 oz, .070" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 9.5, Volts: 14.6 (6) C.C. Volts: 13.6 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 17 Row 4: Date: 5.5.25 Dynamo number: ST45 (1) Remarks: 13 oz 11 oz, .040" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 9.5, Volts: 14.8 (6) C.C. Volts: 14.6 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 Row 5: Date: 6.5.25 Dynamo number: ST55 (1) Remarks: 12 oz 9 oz, .050" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 9.5, Volts: 14.8 (6) C.C. Volts: 15.8 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 Row 6: Date: 6.5.25 Dynamo number: ST65 (1) Remarks: 12 oz 10 oz, .041" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 10.5, Volts: 14.8 (6) C.C. Volts: 16.5 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 Row 7: Date: 7.5.25 Dynamo number: ST75 (1) Remarks: 11 oz 9 oz, .041" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 9.5, Volts: 14.8 (6) C.C. Volts: 14.9 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 Row 8: Date: 8.5.25 Dynamo number: ST85 (1) Remarks: 11 oz 9 oz, .041" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 9.5, Volts: 14.8 (6) C.C. Volts: 15.6 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 Row 9: Date: 8.5.25 Dynamo number: SE25 (1) Remarks: 11 oz 10 oz, .041" (2)(3)(4) Remarks: ∞, OK (5) Output: Amperes: 9.5, Volts: 14.8 (6) C.C. Volts: 14.8 (9)(10) Remarks: OK Brush setting angles: 14 1/4, 16 3/4 | ||