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).
Use of Marconite Varnish, advising against changing from the current synthetic varnish without further testing.
| Identifier | ExFiles\Box 24\2\ Scan268 | |
| Date | 25th March 1927 | |
| R.R. 235c (to T.)(S.H. 988. 22/2/21.) Bm. 5988/2. X.1109 Mr. Brock. Mr. Roy.{Sir Henry Royce} c EFC. Wor{Arthur Wormald - General Works Manager}6/T.25-3-27. MARCONITE VARNISH Referring to your pencil note undated, and EFC8/T.2-2-27, please note BY's remarks:- Copy. Wor.{Arthur Wormald - General Works Manager} BY15/H.24-3-27. MARCONITE VARNISH With reference to the attached papers, there does not seem to be any need for us to change from the synthetic varnish we are using at the moment. If EFC would like to do some experimental work which would result in accurate technical comparisons being produced for reference, it would certainly be worth while doing one or two experimental coils or other parts that EFC would like to consider, but since our stuff is impregnated in a vacuum apparatus, it is difficult to see how this can be done without buying rather a large quantity of the material. In the absence of trouble, I should advise that we let well alone. Wor.{Arthur Wormald - General Works Manager} BY.{R.W. Bailey - Chief Engineer} | ||