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).
Internal order for Zenith Single Tube Type B Resistances for a battery charging rig.
| Identifier | ExFiles\Box 167\2\ img039 | |
| Date | 1st April 1937 | |
| Req from EJJ/JV. c to Lr{Mr Ellor}/Wst. Order No. 811. 6163 EJJ is absent. EJJ/JV8/JC15. 4. 37. Re - BATTERY CHARGING RIG. Please order the following Zenith Single Tube Type B Resistances:- 1 - capable of carrying 73 ohms, 3.3 amperes. 1 - " " " 8.5 " 10.0 " 1 - " " " 1.0 " 8.5 " Deliver to Lr{Mr Ellor}/Wst. Electrical Exp.Department. EJJ/JV. | ||