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).
Quotation from Osram-Robertson Lamp Works for O.R.3 rectifying valves.
| Identifier | ExFiles\Box 41\2\ Scan010 | |
| Date | 20th October 1919 | |
| X3646 ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM. OSRAM-ROBERTSON LAMP WORKS, LIMITED. TELEPHONE NOS. 1500 HAMMERSMITH. 1501 1502 TELEGRAMS: OSRAM, PHONE, LONDON. VOLTAMENTO, PHONE, LONDON. GLASS WORKS: LEMINGTON-ON-TYNE. BROOK GREEN, HAMMERSMITH, LONDON, W. 6. IN VOLUNTARY LIQUIDATION FOR PURPOSE OF AMALGAMATION WITH THE GENERAL ELECTRIC CO LTD IN YOUR REPLY PLEASE QUOTE DEPT. AG/CD. 20th October.1919 CONTROLLED ESTABLISHMENT MUNITIONS OF WAR. ACT. 1915. RECEIVED 22 OCT 1919 Messrs. Rolls-Royce Ltd. Nightingale Road. DERBY. Dear Sirs, Quotation No. 159. We have your letter of the 15th October regarding Rectifying Valves, and have much pleasure in quoting you as follows:- Our type. O.R.3. This has a filament voltage of 9 volts and filament current of 5.5 amps. Emission .2 amp. Capacity 200 watts. Minimum plate potential 500 volts. price £3.10.0. each nett. Please note this price is nett for delivery ex these works. Yours faithfully, OSRAM-ROBERTSON LAMP WORKS LTD. For JAMES FRASER, Liquidator. | ||