| Description | Date | Identifier | |
| Expressing disapproval of the way coachbuilders wire accessories on chassis, citing specific examples of poor workmanship. | 20th Jun 1933 | Box 168 \ 1 img130 | |
| Concern about the wiring of accessories on cars completed by London Coachbuilders. | 22th Jun 1933 | Box 168 \ 1 img131 | |
| Instruction to build ignition wires for a Goshawk 5 engine with specific cables. | 7th Jul 1933 | Box 168 \ 1 img132 | |
| Request to test phosphor bronze braided ignition cable on a Goshawk engine. | 7th Oct 1933 | Box 168 \ 1 img133 | |
| Letter from the Air Ministry regarding the supply and testing of metal braided ignition cables. | 6th Nov 1933 | Box 168 \ 1 img134 | |
| Successful type test on phosphor bronze braided H.T. ignition cables, recommending their adoption. | 14th Nov 1933 | Box 168 \ 1 img135 | |
| Letter requesting technical data and samples for cotton covered aluminium wire from The London Electric Wire Co. Ltd. | 5th Jan 1934 | Box 168 \ 1 img136 | |
| Letter from a supplier regarding the availability of cotton-covered Aluminium Wire and requesting details on its proposed use. | 8th Jan 1934 | Box 168 \ 1 img137 | |
| Comparative data table for the properties of H.C. Copper and Aluminium. | 8th Jan 1934 | Box 168 \ 1 img138 | |
| Letter from Remax Cables regarding the specifications and properties of their new H.T. Ignition Cable. | 13th Jan 1934 | Box 168 \ 1 img139 | |
| Sales letter from Remax Limited regarding a new type of H.T. Cable available in six distinctive colours. | 13th Jan 1934 | Box 168 \ 1 img140 | |
| Letter and sample of High Tension Cable received from Remax Cables Ltd. | 15th Jan 1934 | Box 168 \ 1 img141 | |
| Request for a sample spool of Remax H.T. Cable for testing, to be finished in black. | 16th Jan 1934 | Box 168 \ 1 img142 | |
| Letter to Remax Cables requesting a larger sample spool of Insulated High Tension Cable for testing. | 17th Jan 1934 | Box 168 \ 1 img143 | |
| Letter from Remax Cables regarding a sample of new lacquered cable. | 1st Feb 1934 | Box 168 \ 1 img144 | |
| Fitting and testing a direct earth connector for the 20/25 HP and Bentley 10,000 miles test cars. | 20th Feb 1934 | Box 168 \ 1 img145 | |
| Internal request to order 'Brightray' Nickel Chromium resistance wire from Henry Wiggin & Co. Ltd. | 10th Apr 1934 | Box 168 \ 1 img146 | |
| Production history and material changes of the Phantom magneto high tension wires, specifically concerning the omission of a heat shield. | 23th May 1934 | Box 168 \ 1 img147 | |
| Perished high tension wires on a Phantom magneto and related modifications. | 18th May 1934 | Box 168 \ 1 img148 | |
| Requesting the removal and replacement of magneto H.T. cables from chassis 20-EX and 22-EX for inspection. | 25th May 1934 | Box 168 \ 1 img149 | |
| Reduction of wiring cable diameters for the 'Spectre' chassis and other models. | 4th Jun 1934 | Box 168 \ 1 img150 | |
| Proposal to experimentally wire the 'Spectre' and new Bentley 5.B.IV chassis. | 4th Jun 1934 | Box 168 \ 1 img151 | |
| Order for 10 lbs of copper wire. | 4th Jun 1934 | Box 168 \ 1 img152 | |
| Investigation into perished and cracked Phantom II Magneto H.T. wiring due to heat issues. | 6th Jun 1934 | Box 168 \ 1 img153 | |
| Preference for bakelite sparking plug covers for Spectre ignition wiring to safeguard against fire risk. | 14th Jun 1934 | Box 168 \ 1 img154 | |
| Order for 4 lbs of 22 S.W.G. D.S.C. Copper Wire. | 14th Jun 1934 | Box 168 \ 1 img155 | |
| Comparing prices for chassis cables and proposing a test purchase from an alternative supplier. | 20th Jun 1934 | Box 168 \ 1 img156 | |
| Requesting samples of chassis cables from supplier Ward & Goldstone for quality comparison. | 21th Jun 1934 | Box 168 \ 1 img157 | |
| Letter from Bentley Motors providing the address of a manufacturer for high tension cables. | 21th Jun 1934 | Box 168 \ 1 img158 | |
| Letterhead for E. Kalker & Co., suppliers of insulated wires and cables from Coventry. | 22th Jun 1934 | Box 168 \ 1 img159 | |
| Request to obtain a 12 ft park sample of 7 mm H.T. Cable from E.Kalker & Co. | 22th Jun 1934 | Box 168 \ 1 img160 | |
| Proposal for using smaller diameter cables for the Spectre and other chassis. | 28th Jun 1934 | Box 168 \ 1 img161 | |
| The preference for an aluminium tube over a steel tube for Phantom II H.T. wiring due to heat conductivity. | 29th Jun 1934 | Box 168 \ 1 img162 | |
| Modifications to the Spectre engine's ignition wiring to prevent cable breakdown. | 2nd Jul 1934 | Box 168 \ 1 img163 | |
| Standardisation of an exhaust heat shield for magneto wiring tube and aluminium wiring tube. | 6th Jun 1934 | Box 168 \ 1 img164 | |
| Estimation of costs and production feasibility for standardizing parts on the 'T' series chassis. | 6th Jun 1934 | Box 168 \ 1 img165 | |
| Order for wiring tubes. | 26th Sep 1934 | Box 168 \ 1 img166 | |
| Flexible cable for the 'Spectre' and the issuance of a covering order. | 28th Sep 1934 | Box 168 \ 1 img167 | |
| The necessary replacement of high tension leads on Bentley chassis. | 29th Sep 1934 | Box 168 \ 1 img168 | |
| The failure of high tension leads due to swelling and shorting, recommending replacement after 10,000 miles. | 26th Sep 1934 | Box 168 \ 1 img169 | |
| Faults in the high tension leads of a Bentley chassis, speculating on the cause. | 2nd Oct 1934 | Box 168 \ 1 img170 | |
| The deterioration of high tension wires on Bentley chassis and the institution of tests to find a superior grade of cable. | 2nd Oct 1934 | Box 168 \ 1 img171 | |
| Follow-up on the testing of sample chassis cables from Ward & Goldstone Ltd before placing a new order. | 9th Oct 1934 | Box 168 \ 1 img172 | |
| Instruction to fit a flexible earthing connection for specific chassis and a car, referencing a drawing. | 10th Oct 1934 | Box 168 \ 1 img173 | |
| Delay in testing chassis cables due to urgent work. | 10th Oct 1934 | Box 168 \ 1 img174 | |
| Request for the manufacture of one set of chassis wires to drawing E.59055. | 15th Oct 1934 | Box 168 \ 1 img175 | |
| Letter to British Insulated Cables Ltd. requesting a sample of varnished cotton braided ignition cable for testing. | 19th Oct 1934 | Box 168 \ 1 img176 | |
| Request to order 50 ft. of Kalker Chassis H.T. Ignition Cable for chassis tests. | 22th Oct 1934 | Box 168 \ 1 img177 | |
| Letter from British Insulated Cables Ltd. suggesting a specification for high tension ignition cable. | 29th Oct 1934 | Box 168 \ 1 img178 | |
| Advice note confirming the receipt of 100 yards coil of 'Maconite' Ignition Flex. | 5th Dec 1934 | Box 168 \ 1 img179 | |
| Request to rewire the H.T. wiring on Bentley Chassis 3.B.IV using new maconite H.T. cable. | 10th Dec 1934 | Box 168 \ 1 img180 | |
| Parts list for the 'Spectre' wiring scheme, dash fittings, and cables. | 1st Jan 1935 | Box 168 \ 1 img181 | |
| Continued list of parts for cables and frame fittings. | 1st Jan 1935 | Box 168 \ 1 img182 | |
| Distributing a blueprint for the 'Spectre' Wiring Diagram, D.75018. | 9th Jan 1935 | Box 168 \ 1 img183 | |
| Arranging for Spectre ignition wires to be made with a special Cellulose varnished fabric for testing. | 11th Jan 1935 | Box 168 \ 1 img184 | |
| Letter from H.D. Symons & Co. Ltd. regarding posted samples of 'Symite' High Tension Leads. | 6th Feb 1935 | Box 168 \ 1 img185 | |
| Order for Eureka resistance wire. | 18th Feb 1935 | Box 168 \ 1 img186 | |
| Internal request to order quantities of 29 and 30 S.W.G. tinned copper wire. | 20th Feb 1935 | Box 168 \ 1 img187 | |
| Directive to implement a 500-volt megger test on all chassis wiring before leaving the erecting bay. | 21th Feb 1935 | Box 168 \ 1 img188 | |
| Internal request to order H.T. cable for a Spectre chassis from Messrs. Macintosh. | 6th Mar 1935 | Box 168 \ 1 img189 | |
| Inspection report regarding snow ingress into the engine bay causing misfiring on chassis B.46-AH. | 20th Mar 1935 | Box 168 \ 1 img190 | |
| Internal order request for 5 lbs of superfine copper wire. | 29th Mar 1935 | Box 168 \ 1 img191 | |
| Letter to British Insulated Cables, Ltd. regarding the development of a new ignition cable for 20/25 engines. | 9th Apr 1935 | Box 168 \ 1 img192 | |
| Request to wire up engine 18.G.IV with a new grade of H.T. cable. | 13th Apr 1935 | Box 168 \ 1 img193 | |
| Breakdown of Maconrite high tension wires on test bed units due to heat, and a proposed fix. | 18th Apr 1935 | Box 168 \ 1 img194 | |
| Order for experimental Helsby cable from British Insulated Cables. | 30th Apr 1935 | Box 168 \ 1 img195 | |
| The loan of documents about electric cables issued by Edison Swan Cables Ltd. | 8th May 1935 | Box 168 \ 1 img196 | |
| Internal request to order 400ft of maconite H.T. ignition cable. | 13th May 1935 | Box 168 \ 1 img197 | |
| Request to wire the engine for a Spectre 3 chassis while it is on the test bench. | 16th May 1935 | Box 168 \ 1 img198 | |
| Issues with the Spectre ignition wiring, specifically plug terminal caps and H.T. wires. | 20th May 1935 | Box 168 \ 1 img199 | |
| The positioning of L.T. feed wires and ignition coils to prevent radio interference. | 20th May 1935 | Box 168 \ 1 img200 | |
| Issues with chafed body wiring on Bentley cars, proposing metal armoured braiding, and warning against its misuse. | 20th May 1935 | Box 168 \ 1 img201 | |
| The use of metal braiding on armoured cable for body wiring to eliminate radio interference. | 21th May 1935 | Box 168 \ 1 img202 | |
| Internal order request for a quantity of superfine copper wire. | 23th May 1935 | Box 168 \ 1 img203 | |
| Fitting wireless suppressors to the ignition wires of a Spectre 3 chassis. | 29th May 1935 | Box 168 \ 1 img204 | |
| Internal request to order 15 lbs of superfine copper wire. | 31th May 1935 | Box 168 \ 1 img205 | |
| Request to trial a new Thiokol covered H.T. ignition cable on two vehicles. | 4th Jun 1935 | Box 168 \ 1 img206 | |
| Dispatch of a set of Bentley ignition wires made with an experimental cable. | 8th Jun 1935 | Box 168 \ 1 img207 | |
| The testing of new 'Thiokol' H.T. ignition cables on car 4.B.IV. | 8th Jun 1935 | Box 168 \ 1 img208 | |
| The specifications of a new ignition cable sample and proposing tests. | 12th Jun 1935 | Box 168 \ 1 img209 | |
| The fitting of experimental high tension ignition cables and K.L.G. plugs to chassis 4.B.4. | 14th Jun 1935 | Box 168 \ 1 img210 | |
| The inadequate protection and subsequent damage to lamp and horn cables on model 5.B.IV. | 18th Jun 1935 | Box 168 \ 1 img211 | |
| Secret memo regarding Spectre ignition wiring and the development of new H.T. terminals. | 26th Aug 1935 | Box 168 \ 1 img212 | |
| Part changes for the Spectre Chassis wire fittings, specifically the sparking plug cover and terminal. | 2nd Sep 1935 | Box 168 \ 1 img213 | |
| Requesting arrangements for Spectre ignition wiring on engine 2SI before its shipment to France. | 4th Sep 1935 | Box 168 \ 1 img214 | |
| Specification for H.T. ignition cables for Spectre and Bentley chassis. | 4th Oct 1935 | Box 168 \ 1 img215 | |
| Sent from France requesting fuse wire for a Bentley chassis. | 14th Oct 1935 | Box 168 \ 1 img216 | |
| Internal request to order enamelled single paper covered copper wire from the London Electric Wire Co. Ltd. | 16th Oct 1935 | Box 168 \ 1 img217 | |
| Confirming the maximum diameter for H.T. Ignition Cables for Phantom III and Bentley Chassis. | 18th Oct 1935 | Box 168 \ 1 img218 | |
| Faulty thermo-couple wire from Concordia Electric Wire Co., exhibiting cracked lacquer and breakages. | 23th Oct 1935 | Box 168 \ 1 img219 | |
| Internal order request for sample quantities of Brightray Nickel-Chromium alloy wire. | 23th Oct 1935 | Box 168 \ 1 img220 | |
| Letter from a supplier enclosing a technical treatise on paper-covered enamel wire. | 25th Oct 1930 | Box 168 \ 1 img221 | |
| Letter from The Liverpool Electric Cable Co. Ltd. confirming a 5-yard sample has been sent. | 28th Oct 1935 | Box 168 \ 1 img222 | |
| Premature failure of H.T. cables on certain chassis and a recommendation to consider a more reliable replacement cable. | 31th Oct 1935 | Box 168 \ 1 img223 | |
| The premature failure of H.T. wire on 25-HP cars. | 22th Oct 1935 | Box 168 \ 1 img224 | |
| The standardization of H.T. ignition cables for Bentley & Phantom III models and a change of supplier. | 6th Nov 1935 | Box 168 \ 1 img225 | |
| Standardisation, stock levels, and issues with H.T. Wires for the 25-HP Chassis. | 7th Nov 1935 | Box 168 \ 1 img226 | |
| Investigation into the cause of failure of a high tension cable on a 20/25 HP chassis. | 13th Nov 1935 | Box 168 \ 1 img227 | |
| Analysis of cable replacement procedures, points of failure, and improvements to cable material to prevent ozone damage. | 15th Jun 1935 | Box 168 \ 1 img228 | |
| Standardisation of Parts report for special high-temperature cables. | 15th Jun 1935 | Box 168 \ 1 img229 | |
| | | | |
