Testing status of paraffin waxed paper ignition coils.
| Identifier | ExFiles\Box 69\1\ scan0189 | |
| Date | 26th March 1929 | |
| X8710 EY/RD. from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 8/T26.3.29. IGNITION COILS. Referring to your enquiry regarding paraffin waxed paper coils, and 20,000 turn coil with flat primary - we hope now to be getting back to the question of ignition coils generally. The position of the PWP. coils however at the present moment is that we have two of these running on cars, which one of which is on a 10,000 mile test car in France; also that we have had one on bench test which failed by corrosion of the secondary during the endurance test. The 20,000 turn flat primary coil is also a paraffin waxed paper coil. At present it is partly tested. EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).