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).
Preliminary electrical tests of an apparatus, noting voltage application and battery charging.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan131 | |
| Date | 29th June 1920 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 2 19 A preliminary test with 100 volts d.c. applied through a voltmeter showed that there was no connection between the a.c. side and any other part of the equipment. The apparatus was then connected up for charging, a single cell of the reservoir battery being put on the d.c. wires. Both resistances, which have Edison screw-caps, were in place and the swivelling link connected for full output, (rated at 6.0 amperes.) On switching on the a.c. (50~) there was a delay of a few seconds until the valve filament heated up. Then after several bright flashes had (Cont'd) Signed This Sheet must be filed on completion of the work. RR 238 (150 BKS.) (SH 57. 29-6-20.) MP 224358 | ||