| Description | Date | Identifier | |
| Potential dynamos for the 'Rationalised Range' of vehicles. | 24th Feb 1940 | Box 168a \ 3 img038 | |
| Selection and testing of three potential dynamos for the Rationalised Range. | 24th Feb 1940 | Box 168a \ 3 img039 | |
| Attaching two prints of drawing PL.116, showing a Lucas Dynamo mounted on the B.40 unit. | 22th Feb 1940 | Box 168a \ 3 img040 | |
| Letter to Lucas Ltd. inquiring about the supply of a 5-inch, belt-driven dynamo for a larger class of car. | 21th Feb 1940 | Box 168a \ 3 img041 | |
| Special dynamo from Messrs Lucas for the B60 engine and the request to manufacture the corresponding end brackets. | 12th Feb 1940 | Box 168a \ 3 img042 | |
| Letter to J. Lucas Ltd. acknowledging receipt of drawings for special dynamo brackets. | 16th Feb 1940 | Box 168a \ 3 img043 | |
| Attaching prints for a Lucas Dynamo on a B.60 engine. | 19th Feb 1940 | Box 168a \ 3 img044 | |
| Letter from Joseph Lucas Limited regarding a sample Dynamo and associated drawings. | 9th Feb 1940 | Box 168a \ 3 img045 | |
| Letter from Joseph Lucas Ltd discussing component dimensions and drawing projections. | 9th Feb 1940 | Box 168a \ 3 img046 | |
| Order for five C.45PV/3 type CL1/0 dynamos from Messrs. Lucas. | 9th Feb 1940 | Box 168a \ 3 img047 | |
| Order of five C.45PV/3 type CL1/0 dynamos from Messrs. Lucas. | 9th Feb 1940 | Box 168a \ 3 img048 | |
| Recurring fault with a dynamo that has ceased to charge due to a faulty relay switch. | 5th Aug 1940 | Box 168a \ 3 img049 | |
| Recurring issue with a dynamo and relay switch on a car. | 3rd Feb 1940 | Box 168a \ 3 img050 | |
| History of the Lucas Dynamo for the B.60 engine, detailing modifications and proposals for future schemes. | 3rd Jan 1940 | Box 168a \ 3 img051 | |
| Letter to Lucas Ltd. concerning a special dynamo and specifications for 5 cored cable. | 19th Dec 1939 | Box 168a \ 3 img052 | |
| Requesting a covering order for a Lucas C.45PV Dynamo pulley from Rover Co. | 10th Nov 1939 | Box 168a \ 3 img053 | |
| Letter to M. Wilks of The Rover Co. Ltd. thanking him for supplying a dynamo pulley. | 10th Nov 1939 | Box 168a \ 3 img054 | |
| Parts to be sent to Joseph Lucas Ltd for experimental use. | 1st Nov 1935 | Box 168a \ 3 img055 | |
| Request to arrange for B.60 Dynamo parts to be sent to Messrs. Lucas for experimental purposes. | 31th Oct 1939 | Box 168a \ 3 img056 | |
| Type F.F0 Dynamo Pulley sent to Joseph Lucas Ltd. on loan for experimental purposes. | 30th Oct 1939 | Box 168a \ 3 img057 | |
| Request to dispatch one B.60 Dynamo Pulley to Messrs. Lucas for experimental purposes. | 26th Oct 1939 | Box 168a \ 3 img058 | |
| Letter to Messrs. Lucas Ltd. regarding electrical equipment and an enclosed pulley from an experimental dynamo. | 26th Oct 1939 | Box 168a \ 3 img059 | |
| Replacement of a dynamo commutator for car 3.B.50 with one built from pure mica. | 1st Aug 1939 | Box 168a \ 3 img060 | |
| Failure and revised design of a dynamo mounting bracket for B.60 and B.80 engines. | 18th Jul 1939 | Box 168a \ 3 img061 | |
| The failure of a Dynamo Suspension Bracket during a test bed run. | 8th Jul 1939 | Box 168a \ 3 img062 | |
| Diagram illustrating cracks found on a mechanical component. | 7th Jul 1939 | Box 168a \ 3 img063 | |
| Instructing the production of an urgent 'ALUM 80' Unit No.8 engine. | 7th Jul 1939 | Box 168a \ 3 img064 | |
| Availability of 3½-litre Bentley pistons from repair stock. | 7th Jul 1939 | Box 168a \ 3 img065 | |
| Modifications to the dynamo mounting and fixing for a single belt drive engine. | 5th Jul 1930 | Box 168a \ 3 img066 | |
| Examination and required repairs for a dynamo with noisy bearings. | 28th Jun 1939 | Box 168a \ 3 img067 | |
| Increasing the armature winding gauge of a 36 Slot Dynamo for the Standard Wraith. | 23th Jun 1939 | Box 168a \ 3 img068 | |
| Alteration notice concerning the Dynamo Armature Winding Diagram for Bentley 60 & 80 models. | 1st Jun 1939 | Box 168a \ 3 img069 | |
| Loose nut on the dynamo belt pulley and a stripping thread on the cover screw. | 29th Jun 1939 | Box 168a \ 3 img070 | |
| Prints for a single belt scheme on a Bentley 60 Chassis. | 2nd Jun 1939 | Box 168a \ 3 img071 | |
| The required overhaul for a Dynamo S1C4 from car 8.B.Y. | 16th May 1939 | Box 168a \ 3 img072 | |
| Arranging for a dynamo to be prepared for a second bearing and lubrication test. | 5th May 1939 | Box 168a \ 3 img073 | |
| Investigation into brush noise on a 72 coil dynamo, tracing the cause to varnish working up through mica insulation. | 6th Apr 1939 | Box 168a \ 3 img074 | |
| The analysis of a material, identified as micanite, with recommendations for using a pure grade of mica. | 6th Apr 1939 | Box 168a \ 3 img075 | |
| Modifications to a dynamo, reverting to a shorter case to reduce weight and cost. | 14th Dec 1938 | Box 168a \ 3 img076 | |
| The examination and modification of the field winding on a large shunt dynamo. | 5th Jan 1939 | Box 168a \ 3 img077 | |
| Test results for a machine under standard and modified conditions, comparing temperature rise and cutting-in speed. | 5th Jan 1939 | Box 168a \ 3 img078 | |
| Modification request for a dynamo on Bentley 60 engines, listing required parts. | 21th Feb 1939 | Box 168a \ 3 img079 | |
| Parts list and instructions for dynamo connections, frame and field winding, including details on magnet cases. | 8th Mar 1939 | Box 168a \ 3 img080 | |
| Requesting the overhaul of a dynamo on a Bentley car 6.B.IV due to a worn commutator. | 8th Mar 1939 | Box 168a \ 3 img081 | |
| The failures and performance summary of a 36 slot dynamo. | 30th Mar 1934 | Box 168a \ 3 img082 | |
| Dynamo and regulator tests, comparing brush life and performance across different car models. | 30th Mar 1939 | Box 168a \ 3 img083 | |
| Summary of opinions regarding dynamo issues, comparing the 36 slot dynamo to the Bentley II type and discussing potential solutions. | 30th Mar 1939 | Box 168a \ 3 img084 | |
| Failure and repair of a dynamo from a Bentley car 6.B.IV. | 24th Oct 1938 | Box 168a \ 3 img085 | |
| Requesting the removal of a dynamo from a Bentley and fitting a new one in the experimental garage. | 26th Oct 1938 | Box 168a \ 3 img086 | |
| Responding to a query on a Bentley III, detailing an investigation into voltage control issues and outlining electrical load data. | 29th Oct 1938 | Box 168a \ 3 img087 | |
| Request to fit an armature fuse, dynamo, and regulator to vehicle 27.G.VI. | 8th Nov 1938 | Box 168a \ 3 img088 | |
| Requesting the overhaul and repair of a dynamo taken from vehicle 8.B.V. | 21th Nov 1938 | Box 168a \ 3 img089 | |
| Attaching the production specification and test for a 36 slot dynamo for use on Wraith and Bentley chassis. | 13th Dec 1938 | Box 168a \ 3 img090 | |
| Specification for the inspection and test of a small shunt dynamo. | 13th Dec 1938 | Box 168a \ 3 img091 | |
| Specification outlining the testing procedures for a dynamo, including insulation, load, and performance tests. | 13th Dec 1938 | Box 168a \ 3 img092 | |
| Specification detailing a test procedure for machine insulation. | 30th May 1938 | Box 168a \ 3 img093 | |
| Revised and more efficient production testing specification for dynamos. | 30th May 1938 | Box 168a \ 3 img094 | |
| Success of a new procedure for bedding brushes. | 30th May 1938 | Box 168a \ 3 img095 | |
| Inspection and testing procedures for a small shunt dynamo. | 23th May 1938 | Box 168a \ 3 img096 | |
| Dynamo testing and running-in procedures, including brush bedding and performance checks. | 23th May 1938 | Box 168a \ 3 img097 | |
| List of test procedures for a dynamo, covering mechanical noise, load, vibration, and insulation. | 17th Jun 1938 | Box 168a \ 3 img098 | |
| Agreeing to changes in test specifications for dynamos and starter motors. | 17th Jun 1938 | Box 168a \ 3 img099 | |
| Urgent modification to an experimental dynamo for Wraith and Bentley models. | 28th Jun 1938 | Box 168a \ 3 img100 | |
| Listing four required corrections for Special Dynamo No.S.1C.2 for car 8.B.V. | 6th Jul 1938 | Box 168a \ 3 img101 | |
| Minor corrections for a small dynamo with a 36-slot armature following examination and tests. | 6th Jul 1938 | Box 168a \ 3 img102 | |
| Instructions regarding issues with Phantom III Dynamos, specifically brush pressure and clearance. | 8th Jul 1938 | Box 168a \ 3 img103 | |
| Responding to points raised regarding a small dynamo with a 36 slot armature. | 8th Jul 1938 | Box 168a \ 3 img104 | |
| Test report on the dynamo and regulator for car 35.EX. | 11th Jul 1938 | Box 168a \ 3 img105 | |
| Test results detailing battery current changes and dynamo commutator condition. | 11th Jul 1938 | Box 168a \ 3 img106 | |
| Specifications and parts list for the Bentley 60 Dynamo. | 13th Jul 1938 | Box 168a \ 3 img107 | |
| Instruction sheet listing parts and drawing references for Frame, Field Winding, and Commutator components for the Bentley 60 engine. | 18th Aug 1938 | Box 168a \ 3 img108 | |
| Letter to Messrs. H.C.L. & Repetition Ltd. regarding the examination of sample units and a dynamo design. | 18th Aug 1938 | Box 168a \ 3 img109 | |
| Specification for a 5-inch dynamo. | 18th Aug 1938 | Box 168a \ 3 img110 | |
| Specification document detailing the operational requirements for a dynamo. | 19th Aug 1938 | Box 168a \ 3 img111 | |
| Letter from M.C.L. and Repetition Ltd regarding sample units and a dynamo specification. | 19th Aug 1938 | Box 168a \ 3 img112 | |
| Drawing No.207 for the dynamo mounting on a straight-8 engine. | 22th Aug 1938 | Box 168a \ 3 img113 | |
| Request to fit a new dynamo to car WXA.2 due to trouble with the existing one. | 22th Sep 1938 | Box 168a \ 3 img114 | |
| Letter from a supplier discussing the redesign of a Dynamo and placing the matter in abeyance. | 21th Sep 1938 | Box 168a \ 3 img115 | |
| List of dynamo weights for various car models. | 3rd Oct 1938 | Box 168a \ 3 img116 | |
| Requesting the production of dynamo bearing brackets in Aluminium instead of Aluminium Bronze for the Bentley 60. | 6th Oct 1938 | Box 168a \ 3 img117 | |
| Investigation into a dynamo fault caused by sticking brushes on an experimental Wraith car. | 7th Oct 1938 | Box 168a \ 3 img118 | |
| Analysis of issues with a negative brush and holder, attributing the problem to grease and proposing a new holder design. | 10th Oct 1938 | Box 168a \ 3 img119 | |
| Requesting the replacement of an experimental dynamo on car 35.EX. | 10th Oct 1938 | Box 168a \ 3 img120 | |
| Letter from M.C.L. and Repetition Ltd. requesting a meeting to discuss the provision of a Dynamo. | 10th Oct 1938 | Box 168a \ 3 img121 | |
| Letter to M.C.L. & Repetition Ltd. regarding a meeting with Mr. Beard about dynamos. | 13th Oct 1938 | Box 168a \ 3 img122 | |
| Parts list detailing blueprints and requirements for the Wraith III chassis dynamo drive and armature. | 22th Oct 1938 | Box 168a \ 3 img123 | |
| The parts list, alternatives, and production instructions for Section 5100. | 22th Oct 1938 | Box 168a \ 3 img124 | |
| Request to order a Dynamo Motor and associated equipment from Messrs Brook Motors for the Experimental Electrical Department. | 1st Jan 1935 | Box 168a \ 3 img125 | |
| Letter to The Morgan Crucible Co. Ltd. arranging a visit to test a chassis dynamo. | 4th Jan 1934 | Box 168a \ 3 img126 | |
| Extremely degraded and illegible document, possibly containing a faint drawing. | 4th Jan 1934 | Box 168a \ 3 img127 | |
| List comparing the weights of three different types of dynamos. | 7th Jan 1935 | Box 168a \ 3 img128 | |
| Arranging to pack and send a standard 2V25 dynamo by train to St. Pancras. | 7th Jan 1935 | Box 168a \ 3 img129 | |
| Request to remove and modify a set of poles from an experimental 20/25 dynamo. | 7th Jan 1935 | Box 168a \ 3 img130 | |
| Letter to The Morgan Crucible Co. Ltd. regarding the testing of a dynamo and new brush holders. | 9th Jan 1935 | Box 168a \ 3 img131 | |
| Production of one dozen special Bentley dynamos and a request for a revised test specification. | 17th Jan 1935 | Box 168a \ 3 img132 | |
| Part lists for a 20/25 HP Chassis ventilated dynamo to simplify production. | 17th Jan 1935 | Box 168a \ 3 img133 | |
| Potential improvements to car dynamos based on findings from aero engine experiments. | 18th Jan 1934 | Box 168a \ 3 img134 | |
| Letter enclosing four oscillograph records of a dynamo tested under various conditions. | 23th Jan 1935 | Box 168a \ 3 img135 | |
| Report from The Morgan Crucible Company regarding armature tooth ripple and coil commutation issues. | 23th Jan 1935 | Box 168a \ 3 img136 | |
| Requesting a modification to dynamo poles for a fan ventilated dynamo. | 23th Jan 1935 | Box 168a \ 3 img137 | |
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