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).
Observations and readjustment details for an automatic regulating switch's operating voltage under hot and cold conditions.
| Identifier | ExFiles\Box 59\1\ Scan096 | |
| Date | 8th November 1926 | |
| PC.119. 8.11.26. AUTOMATIC REGULATING SWITCH. (ORIGINAL UNIT) As in the previous case, this unit was first adjusted to operate at 14.5 volts cold (18°C). When heated up on 17.0 volts, however, the operating voltage was found to be 16.5, instead of about 16.0. It was therefore readjusted, while still in the hot condition, to operate at 16.2 volts, when the following observations were made:- When heated up on 17.0 volts the switch opens at 16.2 volts closes at 11.7 " When cold (18°C) it opens at 14.3 volts. EFC/C.A.Pignatt. | ||