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).
Page two of a letter discussing H.T. chokes and coil ignition systems for S.W. reception.
| Identifier | ExFiles\Box 163\2\ img018 | |
| Date | 25th November 1932 guessed | |
| MARCONI'S WIRELESS TELEGRAPH CO., LTD. 77313 (25 Rms. S.P. & Co., Ltd. 1/31) Rolls-Royce, Ld. Page 2. An H.T. choke can be used in addition if S.W. reception is desired. If a coil ignition system is used, the L.T. leads to the coil probably will need to be screened and the coil and distributor itself may need attention. If you would care to send a representative to meet our chief development engineer (Mr. A.W. Whistlecroft) at Croydon Aerodrome, he would be pleased to discuss these matters in more detail. No doubt you will let us know whether you would like one of your representatives to make such a visit so that a suitable day and time may be fixed. Yours faithfully, For MARCONI'S WIRELESS TELEGRAPH Co. Ltd. [Signature] (J.M. Furnival) AIRCRAFT & AIR DIVISION JMF/H | ||