| Description | Date | Identifier | |
| Letter from Masteradio Ltd. postponing a meeting to discuss car radios due to 'the crisis'. | 29th Aug 1939 | Box 168b \ 1 img225 | |
| Letter from World Radio Limited proposing a hand-pump operated cowl aerial for installation in cars. | 31th Aug 1939 | Box 168b \ 1 img226 | |
| Letter from World Radio Limited regarding a faulty radio set, a potential new product, and a replacement. | 31th Aug 1939 | Box 168b \ 1 img227 | |
| Two outstanding invoices received from World Radio Ltd. | 12th Oct 1939 | Box 168b \ 1 img229 | |
| Request to issue a covering order for radio and aerial equipment obtained from World Radio Ltd. | 17th Oct 1939 | Box 168b \ 1 img230 | |
| Letter to Ferranti Ltd. detailing multiple failures of an experimental radio set and returning it. | 23th Oct 1939 | Box 168b \ 1 img231 | |
| Letter requesting a 'set' be perfected before return, noting its use by the Managing Director. | 23th Oct 1939 | Box 168b \ 1 img232 | |
| Requesting the return of a Ferranti Radio set from car WXA.2 to the makers for examination. | 23th Oct 1939 | Box 168b \ 1 img233 | |
| Instructions to collect a radio set from chassis WXA.2 and despatch it to Ferranti Ltd. for examination. | 26th Oct 1939 | Box 168b \ 1 img234 | |
| Letter from Ferranti Ltd. regarding a faulty set and looking forward to post-war cooperation. | 28th Oct 1939 | Box 168b \ 1 img235 | |
| Requesting the fitting of wireless sets to two vehicles, 12.B.V. and 4.B.50. | 30th Oct 1939 | Box 168b \ 1 img236 | |
| Requesting the fitting of wireless sets to two vehicles, with one set to be transferred from an old car. | 30th Oct 1939 | Box 168b \ 1 img237 | |
| Request to obtain a cowl type aerial on a sale or return basis from World Radio Ltd. | 16th Nov 1939 | Box 168b \ 1 img238 | |
| Acquisition of a Cowl Type Aerial from World Radio Ltd on a sale or return basis. | 22th Nov 1939 | Box 168b \ 1 img239 | |
| Requesting a covering order for a cowl type radio aerial to be fitted to an experimental car. | 30th Nov 1939 | Box 168b \ 1 img240 | |
| Letter discussing challenges with installing efficient car radio aerials and sets on all-metal body cars. | 4th Jan 1940 | Box 168b \ 1 img241 | |
| Page 2 of a letter requesting information and data regarding current American practice. | 1st Mar 1940 | Box 168b \ 1 img242 | |
| From Rm to Hs requesting approval to purchase a Radio Analyser for £15/15/-. | 1st Mar 1940 | Box 168b \ 1 img243 | |
| Request to prepare a memo for signing, ordering a Radio Analyser. | 7th Mar 1940 | Box 168b \ 1 img244 | |
| Urgent request to obtain one pair of flexible controls for Model 128.C from Messrs. Ferranti. | 12th Mar 1940 | Box 168b \ 1 img245 | |
| Letter to Ferranti Ltd. placing an order for flexible drives for a car radio set, model 128.C. | 13th Mar 1940 | Box 168b \ 1 img246 | |
| Letter to Ferranti Ltd. regarding an order for flexible drives for a car radio set, requesting they expedite the order. | 13th Mar 1940 | Box 168b \ 1 img247 | |
| Letter from Ferranti Ltd. regarding an order for a pair of 4 ft. flexible drives for a car radio, explaining a stock shortage. | 15th Mar 1940 | Box 168b \ 1 img248 | |
| Letter to Ferranti Ltd. confirming the receipt and successful fitting of drives. | 21th Mar 1940 | Box 168b \ 1 img249 | |
| Request to obtain one Tungar type 27 Platinum rectifier valve from Motoradio Ltd. | 1st Jul 1930 | Box 168b \ 1 img250 | |
| Request to obtain one Tungsten type 53 Barium rectifier valve for a radio. | 16th Apr 1940 | Box 168b \ 1 img251 | |
| Letter from a Philco car radio distributor regarding suppressors and aerials. | 22th Apr 1940 | Box 168b \ 1 img252 | |
| Philco car radio aerials, focusing on the external roof model. | 22th Apr 1940 | Box 168b \ 1 img253 | |
| Product page detailing three different types of Philco car aerials. | 10th Nov 1938 | Box 168b \ 1 img254 | |
| Product sheet for the Philco Telescopic Aerial and general advice on car aerials. | 10th Nov 1938 | Box 168b \ 1 img255 | |
| Advertisement for Philco metallic cloth car aerials, available in roof and running board types. | 1st Feb 1940 | Box 168b \ 1 img256 | |
| Product sheet for Philco car radio suppression equipment, detailing various types of suppressors and condensers. | 1st Feb 1940 | Box 168b \ 1 img257 | |
| Request to obtain a T.C.C. 2 M.F.D. Tubular fixed type condenser from Masteradio, Ltd. | 1st May 1940 | Box 168b \ 1 img258 | |
| Request to obtain one T.C.C. 2 M.F.D. tubular fixed type condenser from Webb'sradio, Ltd. | 1st May 1940 | Box 168b \ 1 img259 | |
| The difficulty of fitting brake-static suppressors to a new Bentley V and requesting a new scheme. | 21th May 1940 | Box 168b \ 1 img260 | |
| The difficulty of fitting brake-static suppressors to a new Bentley V and a proposed solution. | 21th May 1940 | Box 168b \ 1 img261 | |
| Note alluding to a report by Thompson concerning car radios. | 21th May 1940 | Box 168b \ 1 img262 | |
| Guide on the principles of installing a car radio, with a focus on aerial selection and placement. | 21th May 1940 | Box 168b \ 1 img263 | |
| The pros and cons of different types of car aerials. | 21th May 1940 | Box 168b \ 1 img264 | |
| Instructions for fitting aerials to an underslung chassis. | 21th May 1940 | Box 168b \ 1 img265 | |
| Sketches of an aerial layout with component details. | 21th May 1940 | Box 168b \ 1 img266 | |
| Hand-drawn diagram illustrating an aerial installation, labelled as Figure 4. | 6th May 1938 | Box 168b \ 1 img267 | |
| Instructions for fitting roof and side telescopic aerials to a vehicle. | 6th May 1938 | Box 168b \ 1 img268 | |
| Instructions and best practices for installing a radio receiver in a vehicle. | 6th May 1938 | Box 168b \ 1 img269 | |
| Technical note on suppressing engine electrical interference by bonding the engine and metalwork to the chassis. | 6th May 1938 | Box 168b \ 1 img270 | |
| Instructions on suppressing electrical interference from ignition, dynamo, regulator, and brake systems. | 6th May 1938 | Box 168b \ 1 img271 | |
| Remedies for electrical interference from windscreen wipers, petrol pumps, and car heaters. | 6th May 1938 | Box 168b \ 1 img272 | |
| Sources of radio interference from engine components and methods for suppression. | 6th May 1938 | Box 168b \ 1 img273 | |
| The efficiency of various car aerial types and a failure report for a radio unit. | 6th May 1938 | Box 168b \ 1 img274 | |
| Methods to eliminate electrical and radio interference caused by the regulator and brake static. | 6th May 1938 | Box 168b \ 1 img275 | |
| Experiments to suppress regulator interference using a choke coil filter unit on a 7.B.V. car. | 6th May 1938 | Box 168b \ 1 img276 | |
| Failure, diagnosis, and repair of a vehicle's radio system. | 6th May 1938 | Box 168b \ 1 img277 | |
| Graph of battery charging curves with and without filter chokes, taken at 30 M.P.H. | 3rd Jun 1940 | Box 168b \ 1 img278 | |
| Confirming the dispatch of a radio set removed from a Wraith car to the Experimental Department. | 3rd Jun 1940 | Box 168b \ 1 img279 | |
| Inability to fit a wireless earth contact to the front hubs of a Standard Bentley V saloon. | 14th Jun 1940 | Box 168b \ 1 img280 | |
| Continued note regarding the unsuitability of Wraith III pieces. | 3rd Jun 1940 | Box 168b \ 1 img281 | |
| To the Experimental Dept. confirming the removal of a radio from Chassis No. 29.06 for shipment to Derby. | 3rd Jun 1940 | Box 168b \ 1 img282 | |
| Confirming receipt of a radio set and aerials from the U.S.A. and attaching invoices. | 28th Jun 1940 | Box 168b \ 1 img283 | |
| Authorizing an expense to be charged to a specific account number, referencing a previous memo. | 16th Jul 1940 | Box 168b \ 1 img284 | |
| Letter confirming the requirement for a micro-ammeter and returning a drawing. | 26th Aug 1940 | Box 168b \ 1 img285 | |
| Loan of a Philco Radio set for the duration of the war. | 28th Aug 1940 | Box 168b \ 1 img286 | |
| Requesting information on the smallest wireless set for the dashboard design of the 'Myth' model. | 7th Nov 1940 | Box 168b \ 1 img288 | |
| Two wireless set options, a Buick and a Philips set, for the 'Myth' car model. | 13th Nov 1940 | Box 168b \ 1 img289 | |
| Acquisition of American car radio aerials and providing a quality comparison with British and German sets. | 4th Jan 1940 | Box 168b \ 1 img290 | |
| Letter discussing the advantages of American car radios over British models, detailing specific features. | 23th Sep 1940 | Box 168b \ 1 img291 | |
| Differences between English and American car radio sets and recent improvements. | 13th Apr 1940 | Box 168b \ 1 img292 | |
| Delco Remy Hyatt's radio sets and their potential for military production. | 13th Apr 1940 | Box 168b \ 1 img293 | |
| Extract regarding Mr. Rushmore's advocacy for a single wiring system for self-starters. | 18th Dec 1918 | Box 168b \ 2 img001 | |
| Extract detailing requirements for the car's wiring scheme, including conduits, conductors and soldering flux. | 18th Dec 1918 | Box 168b \ 2 img002 | |
| Notes from a visit to Mr. Royce regarding the standardisation of wiring and terminals. | 16th Dec 1918 | Box 168b \ 2 img003 | |
| Optimal placement of the battery on the chassis to improve the wiring scheme. | 1st Jan 1919 | Box 168b \ 2 img004 | |
| The specifications and sourcing of heavy current cable for battery to terminal connections. | 1st Aug 1919 | Box 168b \ 2 img005 | |
| Requesting approval to switch from Lucas to Glovers cable for standard car wiring due to supply issues. | 6th Nov 1919 | Box 168b \ 2 img006 | |
| Disadvantages of Ferflex armouring for wiring and proposing experiments with a spiral type of armouring. | 18th Nov 1919 | Box 168b \ 2 img007 | |
| Pros and cons of earthing electrical connections through the vehicle frame, comparing it with the Buick system. | 9th Jun 1919 | Box 168b \ 2 img008 | |
| The complexities of wiring and earth connections, advocating for a double wiring system, especially for ship work. | 9th Jun 1919 | Box 168b \ 2 img009 | |
| Technical memorandum regarding an improved C.A.V. Dynamo, cutout, and battery on the 40-GB chassis. | 25th Sep 1919 | Box 168b \ 2 img010 | |
| The performance of a C.A.V. dynamo and potential battery over-charging issues on car 49-GB. | 25th Sep 1919 | Box 168b \ 2 img011 | |
| Letter from supplier W.T. Glover & Co Ltd concerning the dispatch and particulars of flexible cable orders. | 23th Sep 1919 | Box 168b \ 2 img012 | |
| Substitution of Glovers cable for Lucas cable in standard cars due to supply issues. | 6th Nov 1919 | Box 168b \ 2 img013 | |
| The standardisation of Glover's cables for chassis wiring, awaiting sign-off. | 10th Nov 1919 | Box 168b \ 2 img014 | |
| Cover letter accompanying a standardisation sheet and related memos for internal processing. | 4th Oct 1943 | Box 168b \ 2 img015 | |
| Querying the original order specification for an abnormally sized cable from Glovers' Wires. | 1st Dec 1919 | Box 168b \ 2 img016 | |
| Procurement and long lead times for Glovers' wire for vehicle wiring schemes. | 25th Apr 1917 | Box 168b \ 2 img017 | |
| Standardisation sheet for 'Clovers' Nuts and Chassis'. | 9th Dec 1919 | Box 168b \ 2 img018 | |
| Standardisation of chassis parts, specifically Glover's Ferflexed armoured wires and modified clips. | 13th Nov 1919 | Box 168b \ 2 img019 | |
| Requesting approval to switch from Lucas to Glovers cables for electrical wiring due to supply issues. | 6th Nov 1919 | Box 168b \ 2 img020 | |
| Urgent memo regarding Glover's wires for chassis wiring standardisation and issues with cable thickness. | 13th Dec 1919 | Box 168b \ 2 img021 | |
| Two alternative proposals for the supply and specification of chassis wiring. | 13th Dec 1919 | Box 168b \ 2 img022 | |
| The disadvantages of ferflex armouring for wiring and a comparison between Lucas and Glovers products. | 13th Dec 1919 | Box 168b \ 2 img023 | |
| The design and sourcing of armoured electrical cables and conductors. | 13th Dec 1919 | Box 168b \ 2 img024 | |
| Specifications for cable wrapping, packing, armouring, and insulation. | 13th Dec 1919 | Box 168b \ 2 img025 | |
| Instructions regarding the design and testing of a battery box suspension for a 40/50 HP chassis. | 20th Dec 1919 | Box 168b \ 2 img026 | |
| Procedure for removing the car battery. | 20th Dec 1919 | Box 168b \ 2 img027 | |
| Instruction sheet detailing voltage readings at the lamp terminals for chassis 2EX under different battery and dynamo conditions. | 29th Dec 1919 | Box 168b \ 2 img028 | |
| Instructions detailing voltage readings at lamp terminals for vehicle 49 G.B. / X3762. | 29th Dec 1919 | Box 168b \ 2 img029 | |
| The danger of engine fire from a low tension wire coming adrift and igniting petrol from a flooding carburetter. | 8th Mar 1920 | Box 168b \ 2 img030 | |
| Evaluation of a small lighting installation, comparing different lamps and a dynamo for performance and noise. | 19th Mar 1920 | Box 168b \ 2 img031 | |
| Storage of data for wiring work and the need for resultant models. | 1st Mar 1920 | Box 168b \ 2 img032 | |
| Request for two photostat copies of a reference table for chassis wiring, specifying size constraints. | 1st Jul 1920 | Box 168b \ 2 img033 | |
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