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 The Telegraph Condenser Company regarding breakdown voltage curves for ignition and car radio condensers.
| Identifier | ExFiles\Box 165\5\ img145 | |
| Date | 20th June 1935 | |
| The Telegraph Condenser Company Limited. 6052 PHONE: ACORN 0061 (6 LINES) GRAMS: 'TELEFARAD, PHONE, LONDON'. CODE: BENTLEY'S. DIRECTORS: LORD EBBISHAM, G.B.E. E.{Mr Elliott - Chief Engineer} H.{Arthur M. Hanbury - Head Complaints} F.{Mr Friese} REEVES S. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} BROWN, F.R.S. W. A.{Mr Adams} S. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} BROWN W. J.{Mr Johnson W.M.} COLE, (MANAGING) Wales Farm Road, North Acton, London, 20th June 1935. YOUR REF W.3. OUR REF JHC/SK. Messrs. Rolls-Royce Ltd., DERBY. For the attention of Mr. West. West Dear Sirs, Further to our letter of 21st May, we are sending you herewith the following curves:- 1. Variation of A.C. and D.C. breakdown voltage with temperature for ignition condensers, T.C.C. drawing No. S.940 (Your drawing No. D.74117.) 2. variation of A.C. and D.C. breakdown voltage with temperature for an 0.25 mfd car radio condenser contained in tubular aluminium case of dimensions identical with those shown on our drawing S.1886. The condenser shown on our drawing No. S.601 is not suitable for use at temperatures greater than 120°F.{Mr Friese} We regret that owing to the extensive nature of the necessary tests there has been some delay in forwarding this information. We are preparing similar curves for the condensers shown in our drawings S.1886 and S.110, and copies of these will be forwarded to you in the course of a few days. Yours faithfully, THE TELEGRAPH CONDENSER CO. LTD. [Signature] ENCS. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. | ||