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).
Recommendation for testing the condition of charge using a voltmeter.
Identifier | ExFiles\Box 26\2\ Scan368 | |
Date | 15th May 1930 guessed | |
-6- (25) Testing for condition of charge. "We recommend that a small voltmeter be carried. The reading of a voltmeter........................ in a healthy condition........... {The remainder of your paragraph being as at present} EFC. | ||