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 results for an Accumulator Capacity Indicator meter submitted by Messrs J.H. Wedge & Co.
| Identifier | ExFiles\Box 54\2\ Scan223 | |
| Date | 7th May 1928 | |
| RR 239 (150 BKS.) (DB {Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X4457 ROLLS-ROYCE LTD. INSTRUCTIONS. To C.F.C. Order No. JC105 Customer's No. Accumulator Capacity Indicator Following are the tests made on a Accumulator Capacity Meter submitted by Messrs J.H. Wedge & Co. Willenhall. Volts required to make instrument read on 'LOW' position of scale 9.7 to 10.9 " MEDIUM " " 10.9 to 12.8 " FULL " " 12.8 to 16.0 The m.a. for full scale reading are 33 ∴ The instrument has a resistance of 485 ohms. Signed G.J. This Sheet must be filed on completion of the work. | ||