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).
Insulation properties and breakdown testing of Redmonite coils compared to bakelite and stabalite materials.
| Identifier | WestWitteringFiles\L\April1924-June1924\ Scan41 | |
| Date | 29th May 1924 | |
| R.R. 235A 100 T) (S.H. 159 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 ORIGINAL TO EFC. FROM R.{Sir Henry Royce} R2/M29.5.24. re. COILS. X4079 I understand you have a Redmonite coil which is satisfactory as regards insulation with the bakelite type of case. I believe the design committee have suggested that this should be carried higher and higher in temperature so as to get a final breakdown comparison with stabalite. Personally I feel very shy at using bakelite for this coil case and will only do so after very careful experiments, as the fault is so elusive and dangerous. R.{Sir Henry Royce} | ||