Request to order spare test tackle and equipment for 500-watt generators from various suppliers.
| Identifier | ExFiles\Box 167\2\ img022 | |
| Date | 6th March 1937 | |
| (6103) To EJJ. from Rm {William Robotham - Chief Engineer} /Wst. Rm {William Robotham - Chief Engineer} /Wst.10/AP.6.3.37. SPARE TEST TACKLE FOR 500 WATT GENERATORS. Will you please arrange to order from Cannings of Manchester, spares for the above. 2 Load resistances .289 ohms value and capable of carrying 50 amps. without overheating. From Ferrantis. 1 Voltmeter 0 - 20 volts. 1 0 - 40 having 6 1/2" dials. From Records Co.Ltd. 2 Ammeters 0 -50 amps. having 6 1/2" dials. From Zenith Co.Ltd. 1 Slider type of variable resistance 13 ohms. capable of carrying 6 amps without overheating. 1 Slider type of variable resistance 52 ohms. capable of carrying 3 1/2 amps. without overheating. From Crabtree Ltd 2 - On-off tumbler type of switch 5 ampere. Rm {William Robotham - Chief Engineer} /Wst. | ||
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).