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).
Request for a condenser and resistance for ignition testing apparatus.
| Identifier | ExFiles\Box 167\2\ img005 | |
| Date | 18th January 1937 | |
| 6103 To EJJ. from Lr{Mr Ellor}/Wst. Lr{Mr Ellor}/Wst.1/AP.18.1.37. IGNITION TESTING CONDENSER AND RESISTANCE. In order to enable us to carry out load testing on ignition coils for aero battery ignition to the latest Air Ministry specification, we require the following apparatus and should be glad if you will make arrangements for the same to be procured for us as soon as possible:- 1. One 200 Micro Micro Farad Condenser capable of standing continuously a voltage of 15,000 peak. 2. One 200,000 ohms resistance capable of carrying 2 milli-amperes and sufficiently well insulated to enable it to be used as a shunt resistance across an ignition coil generating 15,000 volts. Lr{Mr Ellor}/Wst. | ||