| Description | Date | Identifier | |
| The destroyed condition of a P & R battery from chassis 28-LK, attributing the damage to vibration from faulty fixing. | 4th Sep 1924 | Box 46 \ 3 Scan148 | |
| The dismantling and inspection of a P & R battery from vehicle 28LK. | 3rd Sep 1924 | Box 46 \ 3 Scan149 | |
| Proposing to scrap parts of a disassembled P & R BDT.11 battery from chassis 28-LK. | 23th Sep 1924 | Box 46 \ 3 Scan150 | |
| Customer's cracked battery sealing on chassis 66-NK, including repair advice from the battery manufacturer. | 16th Nov 1925 | Box 46 \ 3 Scan151 | |
| Safety instructions for sealing the battery for chassis 66-NK, highlighting the risk of explosion. | 17th Nov 1925 | Box 46 \ 3 Scan152 | |
| Failure and subsequent examination of a battery from a 40/50 HP chassis. | 14th Jan 1926 | Box 46 \ 3 Scan153 | |
| Letter concerning the replacement and dismantling of a battery for Chassis 102-MC from the Paris Trials. | 21th Dec 1925 | Box 46 \ 3 Scan154 | |
| Customer complaint regarding a faulty Peto & Radford battery and the subsequent investigation. | 1st Jan 1926 | Box 46 \ 3 Scan155 | |
| Inspection report on a battery received from chassis 102-M.C. | 19th Jan 1926 | Box 46 \ 3 Scan156 | |
| Battery failure on a Silver Ghost chassis, 40-LK-W, and the proposed response to the customer. | 20th Jan 1926 | Box 46 \ 3 Scan157 | |
| The expected lifespan of batteries under different care conditions. | 20th Jan 1926 | Box 46 \ 3 Scan158 | |
| Examination report on a 40/50 HP battery from chassis 102-MC, concluding it was over-discharged. | 20th Jan 1926 | Box 46 \ 3 Scan159 | |
| Continued report on battery failure analysis, discussing electrolyte stratification and potential causes. | 20th Jan 1926 | Box 46 \ 3 Scan160 | |
| Returned Peto & Radford battery for chassis 40-LK, which was found to be over-charged and thus not covered by guarantee. | 21th Jan 1926 | Box 46 \ 3 Scan161 | |
| Quote from Peto & Radford for a battery repair for chassis 40-LK, belonging to W. Wilson Esq. | 22th Jan 1926 | Box 46 \ 3 Scan162 | |
| Customer complaint and credit negotiation for a faulty Peto & Radford battery on chassis 77-LK. | 2nd Feb 1926 | Box 46 \ 3 Scan163 | |
| Battery replacement dispute for chassis 77-LK belonging to George Lee Esq. | 15th Feb 1926 | Box 46 \ 3 Scan164 | |
| Title page for a document or section on Ignition. | 22th Oct 1923 | Box 46 \ 3 Scan165 | |
| Customer complaints of battery ignition failure on a 40/50 model when the engine is warm. | 22th Oct 1923 | Box 46 \ 3 Scan166 | |
| Battery ignition issue on Chassis 111 AE for a Mr. Minchin. | 25th Oct 1923 | Box 46 \ 3 Scan167 | |
| Cover page for a document concerning ballast resistance. | 9th Dec 1920 | Box 46 \ 3 Scan168 | |
| The failure of the ballast resistance in the chassis battery ignition system, its cause, and a proposed modification. | 9th Dec 1920 | Box 46 \ 3 Scan169 | |
| Technical memo responding to a query about potential damage from leaving an ignition switch on for 36 hours. | 11th Jul 1923 | Box 46 \ 3 Scan170 | |
| Note regarding electrolyte density and charging procedures, concluding that no new material is required. | 11th Jul 1923 | Box 46 \ 3 Scan171 | |
| Cover page with the heading CCIL. | 1st Mar 1920 | Box 46 \ 3 Scan172 | |
| Failed coil from chassis 3-PP, requesting a failure analysis and repair. | 1st Mar 1920 | Box 46 \ 3 Scan173 | |
| The failure of a coil on chassis 3-PP, discussing potential causes related to earthing and insulation. | 2nd Mar 1920 | Box 46 \ 3 Scan174 | |
| The inspection of coils after a failure and the consequences of leaving a switch on. | 6th Aug 1919 | Box 46 \ 3 Scan175 | |
| Failure of an ignition coil on chassis 3-PP, attributing the cause to driver carelessness. | 3rd Mar 1920 | Box 46 \ 3 Scan176 | |
| Failure of ignition coils on test and proposing more stringent testing standards. | 11th Mar 1920 | Box 46 \ 3 Scan177 | |
| Re-testing of faulty ignition coils and proposing more stringent testing standards. | 12th Mar 1920 | Box 46 \ 3 Scan178 | |
| Cause of ignition coil failure and whether it is due to driver error. | 12th Mar 1920 | Box 46 \ 3 Scan179 | |
| Recommendation to line the ballast coil with asbestos to prevent failures from short-circuiting. | 8th Aug 1919 | Box 46 \ 3 Scan180 | |
| Failure of an ignition coil and suggesting the use of an insulating varnish instead of asbestos. | 13th Mar 1920 | Box 46 \ 3 Scan181 | |
| Internal correspondence regarding the failure of an ignition coil, customer liability, and potential design flaws. | 16th Mar 1920 | Box 46 \ 3 Scan182 | |
| Page discussing fixing the ballast resistance separately from the coil. | 16th Mar 1920 | Box 46 \ 3 Scan183 | |
| Investigation into the failure of an ignition coil on chassis 3-PP. | 16th Mar 1920 | Box 46 \ 3 Scan184 | |
| Failure of an ignition coil and proposed design alterations. | 16th Mar 1920 | Box 46 \ 3 Scan185 | |
| Failure of an ignition coil due to a loosening fixing stud for the ballast resistance. | 18th Mar 1920 | Box 46 \ 3 Scan186 | |
| The faults found on an ignition coil from chassis 59-CE. | 13th Jan 1922 | Box 46 \ 3 Scan187 | |
| Instruction sheet detailing the testing and fault diagnosis of a 40/5 Coil. | 11th Sep 1923 | Box 46 \ 3 Scan188 | |
| Fault diagnosis report detailing an intermittent break and partial shortcircuit in a secondary winding. | 11th Sep 1923 | Box 46 \ 3 Scan189 | |
| Investigation into faulty 40/50 coil No.582, which appears to have an intermittent break and partial short circuit. | 11th Sep 1923 | Box 46 \ 3 Scan190 | |
| Investigation of faulty ignition coil No. 3082 from chassis ?LK, identifying a recurring short circuit issue. | 13th Nov 1923 | Box 46 \ 3 Scan191 | |
| Investigation report on a faulty coil, detailing tests and findings. | 12th Nov 1923 | Box 46 \ 3 Scan192 | |
| The testing and fault-finding process for a coil. | 6th Nov 1918 | Box 46 \ 3 Scan193 | |
| The investigation of a failed winding, detailing current readings and corrosion found upon examination. | 6th Nov 1918 | Box 46 \ 3 Scan194 | |
| Examination of a faulty ignition coil from car 45-ZG. | 10th Dec 1923 | Box 46 \ 3 Scan195 | |
| Instruction sheet detailing the test results for a faulty coil from chassis 45ZG. | 18th Dec 1923 | Box 46 \ 3 Scan196 | |
| Examination of a faulty coil, identifying a break in the secondary winding. | 18th Dec 1923 | Box 46 \ 3 Scan197 | |
| Correspondence regarding a faulty ignition coil No. 3922 from a 20-HP Chassis GF-67. | 21th Mar 1924 | Box 46 \ 3 Scan198 | |
| Ignition failure on chassis 58.S.7. and the subsequent investigation and repair. | 27th Mar 1924 | Box 46 \ 3 Scan199 | |
| Broken secondary circuit and the dispatch of two failed parts for examination. | 27th Mar 1924 | Box 46 \ 3 Scan200 | |
| Failure of a coil and ballast resistance from Chassis 58-S-7. | 28th Mar 1924 | Box 46 \ 3 Scan201 | |
| Requesting a test on a faulty coil (No. 3922) from Chassis GF.57 to determine the cause of failure. | 1st Apr 1924 | Box 46 \ 3 Scan202 | |
| Requesting further testing on an ignition coil that was replaced to cure a fault, despite being reported as okay. | 1st Apr 1924 | Box 46 \ 3 Scan203 | |
| The testing and return of ignition coil No. 3414 for chassis 44-G-7. | 31th Mar 1924 | Box 46 \ 3 Scan204 | |
| Instructions detailing the test results for a coil from chassis 44G7. | 3rd Apr 1924 | Box 46 \ 3 Scan205 | |
| Instructions to test an ignition coil on an experimental car to try and reproduce a failure. | 29th Jun 1920 | Box 46 \ 3 Scan206 | |
| Investigation report on a faulty ignition coil from chassis 58-S7, identifying an incipient secondary insulation breakdown as the cause. | 2nd Apr 1924 | Box 46 \ 3 Scan207 | |
| Investigation into a faulty coil from chassis 58-S7, identifying an intermittent short-circuit in the secondary winding. | 31th Mar 1924 | Box 46 \ 3 Scan208 | |
| Faulty coil from 20 HP chassis GF.67, detailing a break in the secondary winding. | 3rd Apr 1924 | Box 46 \ 3 Scan209 | |
| Instruction sheet detailing the testing and diagnosis of a faulty coil from chassis No BF57. | 3rd Apr 1924 | Box 46 \ 3 Scan210 | |
| Tests conducted on ignition coil No. 3414 from chassis 44-G7, detailing its failure. | 4th Apr 1924 | Box 46 \ 3 Scan211 | |
| Correcting a previous misdiagnosis of ignition coil faults on chassis 58-S7 and 44-G7. | 15th Apr 1924 | Box 46 \ 3 Scan212 | |
| Modifying the battery recommendation for the Patiala job and confirming dynamo tests and pulley specifications. | 31th Aug 1923 | Box 46 \ 3 Scan213 | |
| Wiring colour codes for a tested large Lucas dynamo intended for a Patiala chassis. | 3rd Sep 1923 | Box 46 \ 3 Scan214 | |
| Failed Lucas Dynamo from a 10,000-mile trial car, car 12EM, due to a faulty ball bearing. | 14th Nov 1923 | Box 46 \ 3 Scan215 | |
| Inspection report for a Lucas Dynamo R.205. | 6th May 1924 | Box 46 \ 3 Scan216 | |
| Inspection report on the condition of springs, commutator, and brushes. | 29th Jun 1920 | Box 46 \ 3 Scan217 | |
| Machine inspection, detailing loose terminal nuts and a broken bifurcated bolt on the cover. | 7th Oct 1926 | Box 46 \ 3 Scan218 | |
| Inspection Report No. 81 for Chassis No. 80-EU. | 7th Oct 1926 | Box 46 \ 3 Scan219 | |
| Performance and maintenance of chassis number 80-EU for C. Marx, Esq. | 6th Oct 1925 | Box 46 \ 3 Scan220 | |
| Query for more particulars on a post-war 40/50 chassis, No.80.EU, to determine the dynamo type. | 7th Oct 1926 | Box 46 \ 3 Scan221 | |
| Cover page for a document about the distribution board and cutout. | 19th Aug 1920 | Box 46 \ 3 Scan222 | |
| Extract detailing electrical faults on three specific imported chassis, including issues with a main switch, a Lucas cutout, and a generator. | 19th Aug 1920 | Box 46 \ 3 Scan223 | |
| Extract detailing troubles experienced with the electrical equipment on imported chassis. | 19th Aug 1920 | Box 46 \ 3 Scan224 | |
| Ongoing failures with Lucas-supplied cut-outs and switchboxes, including coil failures and corrosion issues. | 17th Sep 1928 | Box 46 \ 3 Scan225 | |
| Title page for a document concerning a switchbox. | 18th Apr 1921 | Box 46 \ 3 Scan226 | |
| Failures and issues with Lucas electrical fittings on post-war chassis. | 18th Apr 1921 | Box 46 \ 3 Scan227 | |
| Recurring issues with fuse wire connections and continual blowing of fuses. | 19th Feb 1931 | Box 46 \ 3 Scan228 | |
| Title page for the starter motor operating gear document. | 23th May 1924 | Box 46 \ 3 Scan229 | |
| Correspondence regarding a faulty ignition coil from a 20 HP Chassis, requesting a report on the issue. | 23th May 1924 | Box 46 \ 3 Scan230 | |
| Failing coil from a 20 HP Chassis G.F. 23 owned by Mr. Billson. | 23th May 1924 | Box 46 \ 3 Scan231 | |
| Request to examine a faulty coil returned from a 40-50 HP Chassis. | 23th May 1924 | Box 46 \ 3 Scan232 | |
| Instruction sheet diagnosing a faulty coil with an abnormally high primary current. | 2nd Jun 1924 | Box 46 \ 3 Scan233 | |
| Instructing the replacement of ignition coils on cars 49-GB and 46-PK. | 3rd Jun 1924 | Box 46 \ 3 Scan234 | |
| The examination of a faulty ignition coil, confirming a short-circuited primary winding. | 3rd Jun 1924 | Box 46 \ 3 Scan235 | |
| The results of a test on a faulty ignition coil from chassis GF.23. | 3rd Jun 1924 | Box 46 \ 3 Scan236 | |
| Test report for Coil No. 3855 from Chassis GF.23, concluding an intermittent short-circuit. | 2nd Jun 1924 | Box 46 \ 3 Scan237 | |
| On test results for ignition coil No. 2981, recommending it be unwound to ascertain the fault. | 3rd Jun 1924 | Box 46 \ 3 Scan238 | |
| Test report on Coil No. 2981 from Chassis 30-LK MC.COWAN, which is suspected to have a partial short circuit. | 2nd Jun 1924 | Box 46 \ 3 Scan239 | |
| Defective coil from a 40/50 HP Chassis 42-EM sent for failure analysis. | 27th Oct 1924 | Box 46 \ 3 Scan240 | |
| Continuity fault found in the secondary winding of ignition coil No. 3913 for chassis 42-EM. | 25th Nov 1924 | Box 46 \ 3 Scan241 | |
| Investigation report on a faulty coil, number 3931, from chassis 42-EM. | 25th Nov 1924 | Box 46 \ 3 Scan242 | |
| Title page for a document concerning a condenser. | 14th Nov 1923 | Box 46 \ 3 Scan243 | |
| Testing a condenser and platinum ignition point from chassis 12YG-Warley Pickering. | 14th Nov 1923 | Box 46 \ 3 Scan244 | |
| Instruction sheet detailing the testing of a faulty mica condenser from a 40/50 chassis. | 14th Nov 1923 | Box 46 \ 3 Scan245 | |
| Complaint of quick burning platinum points in condenser No. 2482 for chassis 38-ZG. | 31th Mar 1924 | Box 46 \ 3 Scan246 | |
| Fault where platinum points burn away on chassis 38.ZG, requesting further testing on condenser No. 2842. | 1st Apr 1924 | Box 46 \ 3 Scan247 | |
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