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).
Letter from E.K. Cole Ltd (EKCO) regarding methods for eliminating radio interference and a request for radio fitting instructions.
| Identifier | ExFiles\Box 63\2\ scan0168 | |
| Date | 10th December 1935 | |
| W. S. VERRELLS Chairman & Managing Director ERIC K.{Mr Kilner} COLE Deputy Managing Director E.{Mr Elliott - Chief Engineer} R.{Sir Henry Royce} PRING R.{Sir Henry Royce} E.{Mr Elliott - Chief Engineer} CORNWALL Directors [LOGO: NATIONAL SCHEME FOR DISABLED MEN] [LOGO: EKCO ALL-ELECTRIC and BATTERY RADIO] TELEGRAMS EKCO SOUTHEND-ON-SEA TELEPHONE SOUTHEND 49491 8 Lines [LOGO: THE RADIO MANUFACTURERS' ASSOCIATION] Handwritten: 86153. RIC/JP E.K.COLE LTD EKCO WORKS SOUTHEND-ON-SEA 10th December 1935. Rolls-Royce Ltd., DERBY. Your Ref: HS{Lord Ernest Hives - Chair}/Wst.12/MA. For the attention of H.E.West Esq., Dear Sirs, We acknowledge and thank you very much for your letter of the 7th inst., informing us of the method which you now find best for eliminating regulator noise on Rolls-Royce and Bentley chassis. Heretofore we have not found it necessary to go to the extent of screening the leads in question, the fitting of a filter condenser to the dynamo positive and sometimes to the auxiliary positive terminal having normally been adequate to eliminate the interference. However, we should be glad if you would supply us with a set of cables when these are available so that should we come up against a difficult case we shall have them to hand. We should be very grateful if you would let us have copies of the blue prints and instructions which you have issued regarding the fitting of radio to your cars. None of these have reached us direct although we have seen several in the hands of coachbuilders, including some instructions about fitting with Mr.Honeyman's reference which we were recently shown at the Mayfair Carriage Co. Copies of these would be very welcome as it is our earnest desire to comply with all your instructions and requests. Yours faithfully, For and on behalf of E.K.Cole Ltd., [Signature] CAR RADIO ENGINEER IMPORTANT NOTICE. "LIMITED LICENCE" "Ekco products are patented and supplied on condition that the recipient accepts a licence under the patents and agrees to sell only at the prices fixed by the Makers. Violation of this by anyone renders him liable for damages." | ||