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).
Re-calibration of a Weston millivoltmeter and its associated volt box.
| Identifier | ExFiles\Box 33\4\ Scan220 | |
| Date | 30th April 1925 | |
| To D/BP. from EFC. c. Despatch Stores c/o Wd{Mr Wood/Mr Whitehead} X1782 EFC3/T30.4.25. X.1782 - RE WESTON MILLIVOLTMETER With reference to our EFC1/T29.4.25 asking for Weston millivolt-ammeter No.22407 to be returned, it is also desirable for purposes of re-calibration to send volt box No.22596 which is used with this instrument No.22407, though there is nothing wrong with the volt box itself. Accordingly we are sending this over to the Despatch Stores. The instrument should come back adjusted to read volts correctly with this box.. but the box should not be altered as it is also used with instrument No.22596 EFC. | ||