| Description | Date | Identifier | |
| Requesting the return of a damaged voltmeter and ammeter for repair. | 6th Mar 1937 | Box 167 \ 2 img021 | |
| Request to order spare test tackle and equipment for 500-watt generators from various suppliers. | 6th Mar 1937 | Box 167 \ 2 img022 | |
| Internal order for non-corrodible steel balls for an altitude test rig's spark gaps. | 8th Mar 1937 | Box 167 \ 2 img023 | |
| Letter to Standard Telephones & Cables Ltd. requesting particulars for a Cathode Ray Oscillograph. | 11th Mar 1937 | Box 167 \ 2 img024 | |
| Request for the overhaul and recalibration of two Weston ammeters. | 11th Mar 1937 | Box 167 \ 2 img025 | |
| Request to despatch a voltmeter and an ammeter, part of the test bed tackle for 500-watt generators, for overhaul and repair. | 12th Mar 1937 | Box 167 \ 2 img026 | |
| Overheating Phantom III dynamo on a Reservoir Battery Boost Rig, requesting instructions to design a new coupling for a replacement. | 12th Mar 1937 | Box 167 \ 2 img027 | |
| Letter from Standard Telephones and Cables regarding a Transient Recorder, its capabilities, and price. | 19th Mar 1937 | Box 167 \ 2 img028 | |
| Referencing a previous instruction for a cable to be ordered. | 23th Mar 1937 | Box 167 \ 2 img029 | |
| Modifications required for the Self-Starter Motor Test Rig in the Electrical Experimental Department. | 3rd Mar 1937 | Box 167 \ 2 img030 | |
| Ordering a Battery Ignition Synchronizer from the Air Ministry for testing Merlin and new secret engines. | 31th Mar 1937 | Box 167 \ 2 img031 | |
| Request to replace an overheating Phantom III Dynamo with a standard Phantom III Dynamometer on a Reservoir Battery Boost Rig. | 1st Apr 1937 | Box 167 \ 2 img032 | |
| Controversy and requesting clarification on electrical test boards for generators on test. | 9th Apr 1937 | Box 167 \ 2 img033 | |
| Request to replace overheating and sagging open type resistances on a battery charging rig with new slider pattern types. | 13th Apr 1937 | Box 167 \ 2 img034 | |
| Requesting the assembly of electrical test boards for generators to be fitted to engines on test. | 13th Apr 1937 | Box 167 \ 2 img035 | |
| Request to manufacture parts for a magnetizing rig, referencing attached documents. | 15th Mar 1937 | Box 167 \ 2 img036 | |
| Request to order one carboy of distilled water for the laboratory. | 2nd Apr 1937 | Box 167 \ 2 img037 | |
| Request to fabricate adaptor pieces for testing a Delco Liberty engine ignition generator. | 13th Apr 1937 | Box 167 \ 2 img038 | |
| Internal order for Zenith Single Tube Type B Resistances for a battery charging rig. | 1st Apr 1937 | Box 167 \ 2 img039 | |
| Request to the Millwrights Department for a coupling piece to test a Delco Liberty Engine Ignition Generator. | 1st Apr 1937 | Box 167 \ 2 img040 | |
| Letter from Siemens-Schuckert suggesting a high-speed portable oscillograph to measure the wave form of coils. | 20th Apr 1937 | Box 167 \ 2 img041 | |
| Letter to Siemens-Schuckert regarding the measurement of ignition impulse periodicity and transient frequencies. | 22th Apr 1937 | Box 167 \ 2 img042 | |
| Letter from Siemens-Schuckert (Great Britain) Ltd. regarding an oscillograph. | 23th Apr 1937 | Box 167 \ 2 img043 | |
| Requesting arrangements for a Hasler rev-counter belonging to the electrical laboratory to be returned for repair. | 5th May 1931 | Box 167 \ 2 img044 | |
| Order to dispatch a Hasler Rev. Counter, No. 13748, to The Hasler Telegraph Co. for overhaul and repair. | 1st May 1937 | Box 167 \ 2 img045 | |
| Request to order a double-handled hexagon sparking plug spanner for use in the Laboratory. | 5th May 1937 | Box 167 \ 2 img046 | |
| Requesting the repair of a Benson stop-watch from the Electrical Laboratory. | 7th May 1931 | Box 167 \ 2 img047 | |
| Mounting a small Aero Ignition Dynamo onto an existing rig in the electrical laboratory. | 19th Mar 1937 | Box 167 \ 2 img048 | |
| Arranging for the repair of a faulty Benson stop watch. | 1st May 1937 | Box 167 \ 2 img049 | |
| Requesting an order for one carboy of distilled water. | 1st Jun 1937 | Box 167 \ 2 img050 | |
| Request to obtain a Zenith screw tube resistance to increase the speed of a vibration test rig. | 2nd Jun 1937 | Box 167 \ 2 img051 | |
| Internal order request for a Zenith Tube Resistance part for a Vibration Test Rig. | 4th Jun 1937 | Box 167 \ 2 img052 | |
| Test results for the modified Enamelling Oven No.3, detailing temperature variations. | 9th Jun 1937 | Box 167 \ 2 img053 | |
| Inefficiencies with the starter motor test rig and proposed alterations to improve it. | 11th Jun 1937 | Box 167 \ 2 img054 | |
| Chasing the delivery of parts required for standardised test equipment. | 23th Jun 1937 | Box 167 \ 2 img055 | |
| Request to order one carboy of distilled water for use in the electrical laboratory. | 12th Aug 1937 | Box 167 \ 2 img056 | |
| Request for a gear ring for a starter motor test rig in the electrical laboratory. | 13th Aug 1937 | Box 167 \ 2 img057 | |
| Order of one carboy of distilled water for the laboratory. | 15th Jul 1937 | Box 167 \ 2 img058 | |
| Millwright's requisition for a gear ring for a laboratory starter motor test rig. | 17th Aug 1937 | Box 167 \ 2 img059 | |
| Request for temporary wiring and equipment for a starter motor rig during the re-arrangement of the electrical laboratory. | 18th Aug 1937 | Box 167 \ 2 img060 | |
| Request to the Millwrights Department for a Gear Ring for the Wraith starter motor test rig. | 1st Aug 1937 | Box 167 \ 2 img061 | |
| Electrical components for a laboratory re-organisation. | 27th Aug 1937 | Box 167 \ 2 img062 | |
| Request to procure two Schrader valves from the Champion Sparking Plug Co. for a plug cleaning rig. | 3rd Aug 1937 | Box 167 \ 2 img063 | |
| Millwright's requisition to make an adaptor for a 25/30 Ignition rig to test distributions. | 3rd Sep 1937 | Box 167 \ 2 img064 | |
| Millwright's requisition for an adaptor for a 25/30 ignition rig to test distributors. | 3rd Sep 1937 | Box 167 \ 2 img065 | |
| Millwright's requisition for a manilla rope to be used for a starter motor rig. | 6th Oct 1937 | Box 167 \ 2 img066 | |
| Internal request to order one carboy of 1350 S.G. sulfuric acid for use in the Laboratory. | 30th Aug 1937 | Box 167 \ 2 img067 | |
| Requesting an urgent repair for a broken Dipper Switch endurance test rig in the Electrical Laboratory. | 31th Aug 1937 | Box 167 \ 2 img068 | |
| Millwright's requisition for a solenoid cap for a Dipper switch test rig. | 3rd Sep 1937 | Box 167 \ 2 img069 | |
| Requesting a stores cupboard for the Chassis Electrical Laboratory. | 17th Sep 1937 | Box 167 \ 2 img070 | |
| To Mr. Child detailing the labour cost for completed jobs on millwrights requisitions. | 20th Sep 1937 | Box 167 \ 2 img071 | |
| Requesting an order for three K.D. Air Desiccators for a high tension voltage testing rig. | 5th Oct 1937 | Box 167 \ 2 img072 | |
| To order three air desiccators with sighting glass for a high tension voltage testing rig. | 1st Oct 1937 | Box 167 \ 2 img073 | |
| Order for glass beakers and a spring balance for use in the electrical laboratory. | 6th Oct 1937 | Box 167 \ 2 img074 | |
| Letter to the National Physical Laboratory requesting information on measuring high voltages for ignition coil work. | 8th Oct 1937 | Box 167 \ 2 img075 | |
| Urgent order for a Zenith resistance unit for the ignition rig. | 8th Oct 1937 | Box 167 \ 2 img076 | |
| Order for a Zenith wire wound non-inductive resistance unit for an ignition rig. | 11th Oct 1937 | Box 167 \ 2 img077 | |
| Millwright's requisition for a wooden platform for a H.T. Voltmeter and to modify an instrument case. | 19th Nov 1937 | Box 167 \ 2 img078 | |
| Millwright's requisition for a modification to a motor housing. | 27th Oct 1937 | Box 167 \ 2 img079 | |
| Millwright's requisition for urgent work to drill holes in a resistance panel. | 15th Nov 1937 | Box 167 \ 2 img080 | |
| Internal order request for a carbon plate rheostat from Cambridge Instrument Co. Ltd. | 30th Oct 1937 | Box 167 \ 2 img081 | |
| Order for a Carbon Plate Rheostat for modifications to a self-starter motor test rig. | 1st Nov 1937 | Box 167 \ 2 img082 | |
| Order of Eureka wire for use in the laboratory battery charging rig. | 16th Nov 1937 | Box 167 \ 2 img083 | |
| Request to the Pattern Shop for a wood platform for the Electrical Experimental Department. | 23th Nov 1937 | Box 167 \ 2 img084 | |
| Translated Bosch instruction manual on the use, setting, and maintenance of spark gaps. | 23th Nov 1937 | Box 167 \ 2 img085 | |
| Diagram illustrating the correct settings and dimensions for a spark gap. | 4th Dec 1937 | Box 167 \ 2 img086 | |
| Request to obtain electrical components for an ignition rig. | 4th Dec 1937 | Box 167 \ 2 img087 | |
| Internal request to order electrical components for an ignition test rig from Messrs Batterby & Hefford Ltd. | 7th Dec 1937 | Box 167 \ 2 img088 | |
| Urgent requisition to make an adaptor for an ignition rig to test Delco-Remy distributors to DW 291. | 9th Dec 1937 | Box 167 \ 2 img089 | |
| Request for one carboy of distilled water for the Electrical Laboratory. | 22th Dec 1937 | Box 167 \ 2 img090 | |
| Urgent internal memo requesting a switch for a battery test rig. | 22th Dec 1937 | Box 167 \ 2 img091 | |
| Request to order one carboy of distilled water for experimental car batteries. | 22th Dec 1937 | Box 167 \ 2 img092 | |
| The purchase of a switch for a battery test rig from Messrs. Edison Swan Elec. Co. Ltd. | 30th Dec 1937 | Box 167 \ 2 img093 | |
| Millwright's requisition for a duplex coupling to be made for a speedometer and test rig. | 6th Jan 1938 | Box 167 \ 2 img094 | |
| The arrangement and delivery of parts for a Speedometer Test Rig for the Electrical Experimental Department. | 1st Jan 1938 | Box 167 \ 2 img095 | |
| Request to repair a broken Weston Voltmeter and convert it from a speed indicator back to a voltmeter with a 25-volt range. | 6th Jan 1937 | Box 167 \ 2 img096 | |
| Requesting the dispatch of a Weston Voltmeter for overhaul, repair and modification. | 1st Jan 1938 | Box 167 \ 2 img097 | |
| Requesting a change of switch for a battery test rig, as the one supplied was unsuitable. | 19th Jan 1938 | Box 167 \ 2 img098 | |
| Millwright's requisition for a clock case to be made from an attached sketch. | 20th Jan 1938 | Box 167 \ 2 img099 | |
| Millwright's requisition for a base board for a dynamo test table wiring mock-up. | 3rd Feb 1938 | Box 167 \ 2 img100 | |
| Millwright's requisition to modify a distributor rig due to recent design changes. | 9th Feb 1938 | Box 167 \ 2 img101 | |
| Request for a small, regulated oven to test ignition coils under running conditions. | 28th Feb 1938 | Box 167 \ 2 img102 | |
| Order for experimental electrical laboratory test rig equipment. | 2nd Jul 1937 | Box 167 \ 2 img103 | |
| Continuation sheet (Sheet 2) referencing a quotation from June 1937. | 2nd Jul 1937 | Box 167 \ 2 img104 | |
| Order for equipment to build standard test rigs for electrical accessories. | 6th Jul 1937 | Box 167 \ 2 img105 | |
| The apparatus required to create standard test rigs for bought-out electrical accessories. | 15th May 1937 | Box 167 \ 2 img106 | |
| Millwright's Requisition for wiring up a 3-phase AC mains supply to an ignition testing bench. | 11th Mar 1938 | Box 167 \ 2 img107 | |
| Millwright's requisition for 12 terminals for use in the electrical laboratory. | 11th Feb 1938 | Box 167 \ 2 img108 | |
| Order to the Millwrights Department to make and erect driving pieces for the Wraith Distributor Rig. | 1st Mar 1938 | Box 167 \ 2 img109 | |
| Confirming an order for a gas-heated drying oven for the Experimental Electrical Laboratory's ignition test rig. | 22th Mar 1938 | Box 167 \ 2 img110 | |
| Millwright's requisition form for the creation of one starter cradle as per an attached sketch. | 29th Mar 1938 | Box 167 \ 2 img111 | |
| Request to order one carboy of distilled water for the laboratory. | 29th Mar 1938 | Box 167 \ 2 img112 | |
| Request for a carboy of distilled water for the Electrical Laboratory. | 30th Mar 1938 | Box 167 \ 2 img113 | |
| Promotional flyer for a low price offer on high-class 1/50th HP motors and accessories. | 30th Mar 1938 | Box 167 \ 2 img114 | |
| List of standard products, including vacuum, industrial, and laboratory equipment. | 30th Mar 1938 | Box 167 \ 2 img115 | |
| Catalog page for various models of Edwards vacuum taps with illustrations and pricing. | 30th Mar 1938 | Box 167 \ 2 img116 | |
| Product index of standard vacuum, industrial, and laboratory apparatus. | 6th Apr 1938 | Box 167 \ 2 img117 | |
| Millwright's requisition for connecting a gas supply to an oven in the electrical laboratory. | 6th Apr 1938 | Box 167 \ 2 img118 | |
| Millwright's requisition for a new gear ring and modifications to a cradle for testing starter motors. | 5th Apr 1938 | Box 167 \ 2 img119 | |
| Millwright's requisition to repair a non-working buzzer in the Experimental Test office. | 26th Apr 1938 | Box 167 \ 2 img120 | |
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