Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Reference note regarding production tests of 20/25 electrical components. | ||
| View original record | 1.1.31. X.6087. For previous matter relating to Production tests of 20/25 electrical components see X.5781. | ||
| Scan002 | Cover note for updated production inspection and test specification pages for a distribution box and cutout. | ||
| View original record | X6087. By. from Hs/Pgt. c. Sft/Mr.Brock. Hs/Pgt.1/AM.6.10.31. X.6088 R.R. DISTRIBUTION BOX AND CUTOUT X.6016 X.6087 PHANTOM II AND 20/25. X.6067 X.6068 We attach herewith pages 1 and 3 of… | ||
| Scan003 | Production inspection, adjustment, and test specification for the distribution box and cutout on 40/50 and 20/25 HP cars. | ||
| View original record | R.R. DISTRIBUTION BOX AND CUTOUT. Type for use on 40/50 and 20/25 HP. cars in conjunction with two-rate charge scheme. SPECIFICATION OF PRODUCTION INSPECTION, ADJUSTMENT AND TEST. (1) The cover of the… | ||
| Scan004 | Test procedure for a dynamo and distribution box, detailing cold condition operation and charging current tests. | ||
| View original record | -2- dynamo, a 12 volt battery of suitable capacity, two ammeters A and B, and two voltmeters V and v, according to diagram herewith, the latter voltmeter having a loose lead suitable for touching on… | ||
| Scan005 | Procedure for testing the falling away point of a dynamo cutout by reducing speed and observing an ammeter. | ||
| View original record | -3- (6) The dynamo speed shall be reduced until the ammeter A reading is zero. The connections to this ammeter shall then be reversed, after which the speed shall gradually be reduced still further… | ||
| Scan006 | Hand-drawn wiring diagram for a distribution box and cutout test. | ||
| View original record | CONNECTIONS FOR RR UN/50 DISTRIBUTION BOX & CUTOUT TEST. R A U O V B A + - | ||
| Scan007 | Cover letter for the production inspection and test specification of a Dynamo Field Resistance Unit. | ||
| View original record | X6087. By. from Hs/Pgt. c. Sft/Mr.Brock. Hs/Pgt.2/AM6.10.31. 40/50 AND 20/25 X.6016 DYNAMO FIELD RESISTANCE UNIT. X.6088 X.6087 Herewith please receive Specification of Production Inspection and Test… | ||
| Scan008 | Production inspection and testing procedure for a 40/50 and 20/25 Dynamo Field Resistance Unit. | ||
| View original record | PRODUCTION INSPECTION AND TEST OF 40/50 AND 20/25 DYNAMO FIELD RESISTANCE UNIT. Type - Active length 23" of 26 S.W.G. Eureka wire. A rig should be used with connecting pins on which a convenient… | ||
| Scan009 | Cover memo for the production test specification of a 20/25 HP Dynamo. | ||
| View original record | X6087. Ey. from Hs/Pgt. c. Sft/Mr.Brock. Hs/Pgt.1/AD22.10.31. X.6005 20/25 HP. DYNAMO. X.6087. Herewith please receive Specification of Production Test of the above. Hs/Pgt. Attached. | ||
| Scan010 | Specification of a running test for a 20/25 HP Dynamo. | ||
| View original record | SPECIFICATION OF RUNNING TEST OF 20/25 HP. DYNAMO. Armature :- 24 slot, 16 conductors. 18 S.W.G. Poles :- .015" air gap increasing to .055" Brush angles :- 13° 126° The machine is assumed to have all… | ||
| Scan011 | Cover note for the Production Test Specification for a 20/25 Switchbox. | ||
| View original record | X6087. By. from Hs/Pgt. c. Sft/Mr.Brock. Hs/Pgt.1/AD20.10.31. X.6069 20/25 SWITCHBOX. X.6087. X.6016 Herewith please receive Specification of Production Test for the above. Hs/Pgt. Attached. | ||
| Scan012 | Specification document detailing the testing procedure for a 20/25 switchbox. | ||
| View original record | X.6069. SPECIFICATION OF TEST FOR 20/25 SWITCHBOX. X.6087. X.6016. Type :- Two-rate charge. Full output with side and tail lamps on. Armature circuit broken before field circuit. (1) Inspect the… | ||
| Scan013 | Page of a test procedure for an electrical component, detailing switch and terminal checks. | ||
| View original record | -2- (1) With S and T switched on, light is obtained from terminals Nos. 2 and 5. (2) With HS and T switched on, light is obtained from terminals Nos. 2, 4, and 5. (3) With I only switched on, light is… | ||
| Scan014 | Covering memo for a revised production specification for the running test of the 20/25 dynamo. | ||
| View original record | X6087 ds. By. From Hs/Wst. c. Sft/Mr.Brock. Hs/Wst.2/MA.26.4.32. PRODUCTION SPECIFICATION OF RUNNING TEST OF 20/25 DYNAMO. X.6005 With reference to the various complaints recently received regarding… | ||
| Scan015 | Specification for the running test of a 20/25 HP dynamo. | ||
| View original record | SPECIFICATION OF RUNNING TEST OF 20/25 HP. DYNAMO. Armature :- 24 slot, 16 conductors. 18 S.W.G. Poles :- .015" air gap increasing to .055" Brush angles :- 13° 126° The machine is assumed to have all… | ||
| Scan016 | Production inspection and test specification for the 20/25 starter motor with Bijur Bendix drive. | ||
| View original record | X6087 sm By. from EFC. c. Sft/Mr.Brock. EFC2/AD1 7.3.31. X.6087 sm. R.R. 20/25 STARTER MOTOR BIJUR BENDIX DRIVE. Herewith please receive Specification of production inspection and test for the above.… | ||
| Scan017 | Specification document for the test and inspection of a 20/25 starter motor with a Bijur Bendix drive. | ||
| View original record | 9.3.31. X.6087 sm. R.R. 20/25 STARTER MOTOR X.3587 BIJUR BENDIX DRIVE. SPECIFICATION OF TEST & INSPECTION. (a) First the large test gear wheel into which the bendix pinion engages should be locked… | ||
| Scan018 | Attaching the specification for a running test of a 20/25 HP dynamo. | ||
| View original record | X6087 By. from Hs/CAP. c. Sft/Mr. Brock. Hs/CAP7/ADL 2.5.31. 20/25 HP. DYNAMO. X6087 X5661 Herewith please receive Specification of running test of the above dynamo. Attached. Hs/CAP. | ||
| Scan019 | Specification for the running test of a 20/25 HP dynamo. | ||
| View original record | SPECIFICATION OF RUNNING TEST OF 20/25 HP. DYNAMO. Armature :- 28 slot 16 conductors. Brush angles:- 15° 121° Poles :- .015 air gap and trailed. The machine is assumed to have all mechanical… | ||
| Scan020 | Revised production specification for a condenser used in 20/25 and 40/50 battery ignition systems. | ||
| View original record | x6087. BY. From Hs/Wst. c. to BY/RD. c. to Sft/Mr.Brock. Hs/Wst.3/MA.11.5.33. x6113 x6088. CONDENSER FOR 20/25, AND 40/50 BATTERY IGNITION. We send you herewith revised production specification for… | ||
| Scan021 | Production testing procedure for a paraffin waxed paper dielectric condenser for battery ignition. | ||
| View original record | PRODUCTION TEST OF PAPER DIELECTRIC CONDENSER FOR BATTERY IGNITION. (Paraffin waxed paper dielectric). (1) It is assumed that each condenser, after production and before encasing, will be stored for a… | ||
| Scan022 | List of testing procedures for a condenser, page 2. | ||
| View original record | -2- (5) If satisfactory as regards (2), (3) and (4), the condenser shall now be fitted up in its case. (6) The condenser, now in its case, shall be again tested by applying to its terminals a voltage… | ||
| Scan023 | Reference note for previous documents concerning production tests of 40/50 electrical components. | ||
| View original record | X.6088. 1.1.31. For previous matter relating to Production tests of 40/50 electrical components see X.7781. | ||
| Scan024 | Attaching updated specification pages for the Distribution Box and Cutout on Phantom II and 20/25 models. | ||
| View original record | X6088 Ev. from Hs/Pgt. c. Sft/Mr.Brock. Hs/Pgt.1/AM6.10.31. X.6088 R.R. DISTRIBUTION BOX AND CUTOUT X.6016 X.6087 PHANTOM II AND 20/25. X.6067 X.6068 We attach herewith pages 1 and 3 of Specification… | ||
| Scan025 | Specification for production inspection, adjustment, and testing of a distribution box and cutout for 40/50 and 20/25 HP cars. | ||
| View original record | 16.10.31. R.R. DISTRIBUTION BOX & CUTOUT. Type for use on 40/50 and 20/25 HP. cars in conjunction with two-rate charge scheme. SPECIFICATION OF PRODUCTION INSPECTION, ADJUSTMENT AND TEST. (1) The… | ||
| Scan026 | Testing procedure for a dynamo and distribution box under specific electrical conditions. | ||
| View original record | -2- dynamo, a 12 volt battery of suitable capacity, two ammeters A and B, and two voltmeters V and v, according to diagram herewith, the latter voltmeter having a loose lead suitable for touching on… | ||
| Scan027 | Procedure for testing the point at which cutout contacts disengage. | ||
| View original record | -3- (6) The dynamo speed shall be reduced until the ammeter A reading is zero. The connections to this ammeter shall then be reversed, after which the speed shall gradually be reduced still further… | ||
| Scan028 | Wiring diagram for testing the distribution box and cutout for a 40/50 model. | ||
| View original record | CONNECTIONS FOR RR 40/50 DISTRIBUTION-BOX & CUTOUT TEST R A V B A F + - | ||
| Scan029 | Production specification for inspection and testing of a Phantom II medium output dynamo with a 48 coil armature. | ||
| View original record | X6088 Ry. from EFC. c. Sft/Mr.Brock EFCl/AD23.1.31. X.6088. PRODUCTION SPECIFICATION OF INSPECTION & TEST OF R.R. PHANTOM II MEDIUM OUTPUT DYNAMO X.6004. WITH 48 COIL ARMATURE. Herewith please receive… | ||
| Scan030 | Specification of inspection and test procedures for a 40/50 HP medium output dynamo with a 48 coil armature. | ||
| View original record | X.6088. R.R. 40/50 HP. MEDIUM OUTPUT DYNAMO X.6004. WITH 48 COIL ARMATURE. SPECIFICATION OF INSPECTION AND TEST. VERSION 11. Applicable to dynamos with 48 coil armatures without field pole… | ||
| Scan031 | Instructions for testing a dynamo, including insulation resistance and the main bedding of brushes. | ||
| View original record | -2- (e) The connections of the pigtail conductors are not in any way damaged. (f) The initial bedding of the brush shows partial contact reasonably well distributed over the working surface.… | ||
| Scan032 | Test procedures for dynamo brush noise, bedding, and output observations. | ||
| View original record | -3- Particular notice should be taken of any undue brush noise which may develop on this test. On any brush which is noisy, it should be again checked that the clearances between the brush and its… | ||
| Scan033 | Testing procedures for a dynamo, covering noise, vibration, brush sparking, and insulation. | ||
| View original record | -4- speed varied up and down with a view to testing for mechanical and electrical noise. (8) The dynamo shall now be run up to 3600 r.p.m. still on load, and shall show no abnormal brush sparking.… | ||
| Scan034 | Undesirability of control brush blackening on the Phantom II dynamo and suggesting its removal from test specifications. | ||
| View original record | X.6088. EFC. BY/RD7/N.28.1.31. Re: Production Test of Dynamo with 48 Coil Armature. Phantom II. We note in Paragraph 3. of the Production Test:- "Any tendency of the control brushes to blacken along… | ||
| Scan035 | Blackening phenomenon during the production test of a Phantom II medium output dynamo. | ||
| View original record | X6088 By/RD. from EFC. EFC3/AD28.1.31. X.6088. PRODUCTION TEST OF PHANTOM II MEDIUM OUTPUT DYNAMO WITH 48 COIL ARMATURE. Answering your By/RD7/N28.1.31, careful consideration was given to the matter… | ||
| Scan036 | Cover letter for the running test specification of a 40/50 HP dynamo. | ||
| View original record | X6088. By. from Hs/CAP. c. Sft/Mr. Brock. Hs/OAPL/AD11.6.31. X6088 X6126 40/50 HP. DYNAMO. Herewith please receive Specification of running test of the above dynamo. Attached. Hs/CAP. | ||
| Scan037 | Specification for a running test of a 40/50 HP Dynamo. | ||
| View original record | 11.6.31. SPECIFICATION OF RUNNING TEST OF 40/50 H.P. DYNAMO. Armature :- 24 slot 20 conductors. 17 S.W.G. Poles :- .022" air gap increasing to .065" Brush angles :- 20° 120°. The machine is assumed to… | ||
| Scan038 | Cover note for the production inspection and test specification of a 40/50 Dynamo Field Resistance Unit. | ||
| View original record | X6088. By. from Hs/CAP. u. Sft/Mr.Brock. Y Hs/CAP2/ADL5.6.31. 40/50 DYNAMO FIELD RESISTANCE UNIT. X.6016 X.6088 Herewith please receive Specification of Production Inspection and Test for the above.… | ||
| Scan039 | Production inspection and test procedure for a 40/50 Dynamo Field Resistance Unit. | ||
| View original record | PRODUCTION INSPECTION AND TEST OF 40/50 DYNAMO FIELD RESISTANCE UNIT. Type - Active length 23" of 26 S.W.G. Eureka wire. ---------- A rig should be used with connecting pins on which a convenient… | ||
| Scan040 | Cover sheet for the Production Inspection and Test Specification for a Dynamo Field Resistance Unit. | ||
| View original record | X6088 Ry. from Hs/Pgt. c. Sft/Mr.Brock. Hs/Pgt.2/AM 6.10.31. 40/50 AND 20/25 X.6016 DYNAMO FIELD RESISTANCE UNIT. X.6088 X.6087 Herewith please receive Specification of Production Inspection and Test… | ||
| Scan041 | Production inspection and test procedure for a 40/50 and 20/25 Dynamo Field Resistance Unit. | ||
| View original record | 16.10.31. PRODUCTION INSPECTION AND TEST OF 40/50 AND 20/25 DYNAMO FIELD RESISTANCE UNIT. Type - Active length 23" of 26 S.W.G. Eureka wire. ---------- A rig should be used with connecting pins on… | ||
| Scan042 | Attaching the specification of acceptance tests for the new Watford and B.T.H. Magnetos. | ||
| View original record | X6088 To BY. From Hs/HEW. c. to Sft/Mr. Ellis. Hs/HEW.2/MJ.24.7.31. AERO MAGNETO ACCEPTANCE TESTS. We attach herewith copy of specification of acceptance tests for the new Watford and B.T.H. Magnetos.… | ||
| Scan043 | Amendment to the specification for Aero Magneto Acceptance Tests. | ||
| View original record | V6088. By. from Hs/HEW. c. Sft/Mr. Ellis. Hs/HEW5/AD1 3.8.31. AERO MAGNETO ACCEPTANCE TESTS. Further to the specification of the above sent to you under cover of Hs/HEW2/MJ24.7.31, will you kindly… | ||
| Scan044 | Specification of inspection and test for a sequence starter motor with a longitudinal damper. | ||
| View original record | X6088. 20.3.31. X.6080. R.R. SEQUENCE STARTER MOTOR (WITH LONGITUDINAL DAMPER). X.6088. SPECIFICATION OF INSPECTION AND TEST. VERSION 2. (1) INSPECTION. Inspect the brush mechanism and make sure that… | ||
| Scan045 | Test procedures for an armature operated switch, pinion spring, insulation, and brush bedding. | ||
| View original record | -2- (f) Verify that the armature operated switch makes contact over the last .200 ± 15 of armature motion, if necessary adjusting the maximum value of the contact gap to give this condition. The… | ||
| Scan046 | Test procedure document detailing light, armature return, and damping tests for a motor. | ||
| View original record | -3- (4) LIGHT TEST. The motor shall be run light on its main circuit for a period of ten minutes on a terminal P.D. lying between the limits 5.6 to 6.0. Towards the end of the run the current taken… | ||
| Scan047 | Blueprint wiring diagram showing the arrangement of apparatus and connections for a starter motor test. | ||
| View original record | -3a- SUPPLY + A S₂ V + - E M S S₁ S T ARRANGEMENT OF APPARATUS & CONNECTIONS FOR STARTER MOTOR TEST. | ||
| Scan048 | Test procedure for longitudinal motion involving switches, a motor, and a flywheel with a brake drum. | ||
| View original record | -4- (7) LONGITUDINAL MOTION TEST. (8) For this test together with Nos. (9), (10), (11) and (12), a system as represented in the diagram on the previous page has been agreed upon, there being two small… | ||
| Scan049 | Page from a test procedure manual detailing motor tests, specifically the Teazer Torque Test and the Load Test. | ||
| View original record | -5- at random, allowing the armature to return fully to its normal position each time. Provided the pinion does not jam on the engaging corners, it must slide into mesh far enough for the armature… | ||
| Scan050 | Test procedures for a motor, including load test specifications and a brush distress test. | ||
| View original record | -6- With S₂ switched on a brake load shall be applied to the wheel and when S₁ is switched on to obtain engagement the brake torque shall be suitably adjusted until the main motor current (indicated… | ||
| Scan051 | Test procedures for a motor, including intermittent load, drop-out torque, pinion examination, and insulation breakdown. | ||
| View original record | -7- (11) INTERMITTENT LOAD TEST. Still with the same brake load applied, the motor shall be switched on and off for several times in succession. (N.B. It will be noted that in switching off the motor,… | ||
| Scan052 | Specification of production inspection and test for a sequence starter's combined main and auxiliary switch unit. | ||
| View original record | X6088 25.2.32 SEQUENCE STARTER. K.6048. COMBINED MAIN SWITCH & AUXILIARY SWITCH UNIT. X6088 / C.7751 sm. SPECIFICATION OF PRODUCTION INSPECTION & TEST. I. GENERAL INSPECTION. (1) Ascertain that the… | ||
| Scan053 | Inspection and setup instructions for a main switch unit, detailing clearances and contact gaps. | ||
| View original record | contd. -2- (6) Inspect generally the small Eureka wire bobbin resistance which is connected in parallel with the main switch operating coil. (7) The arrangement of the lower hold on contact spring on… | ||
| Scan054 | Test procedure for a switch unit, specifying current limits and contact pressure. | ||
| View original record | -3- contd. to the terminals of a six-volt battery, through an ammeter, and the current taken by the coils (with non-inductive resistance in parallel) at 6 volts at atmospheric temperature shall be… | ||
| Scan055 | Test specifications and gap measurements for an auxiliary switch unit. | ||
| View original record | -4- contd. (5) Whilst still warm from above test, an alternating voltage of 200 shall be applied, through a lamp, between the windings including the non-inductive resistance coil, and the switch arm;… | ||
| Scan056 | Test specifications for a switch, detailing current limits and voltage breakdown tests. | ||
| View original record | -5- contd. at least sufficient to pull the switch lever right down to the armature stop. If the current falls outside either of these limits the main spring and the lower hold on contact spring shall… | ||
| Scan057 | Table of measurements and tolerances for main and auxiliary switch unit gaps. | ||
| View original record | 25. 2. 32. MAIN AND AUXILIARY SWITCH UNIT GAP TABLES. SCHEME OR UNIT :- .L MAIN SWITCH Position of Switch. Air gap at core centre. Core to Armature Stop. Copper gap (first blade to make). Carbon gap.… | ||
| Scan058 | Covering memo for the test specification of a 40/50 Switchbox. | ||
| View original record | X6088. By. from Hs/CAP. c. Sft/Mr. Brock. Hs/CAP1/AD15.6.31. 40/50 SWITCHBOX. X.6070 X.6088 Herewith please receive Specification of Test for the above. Hs/CAP. Attached. | ||
| Scan059 | Specification of test procedures for a 40/50 switchbox. | ||
| View original record | X6088 15.6.31. SPECIFICATION OF TEST FOR 40/50 SWITCHBOX. Type - Two-rate charge. Full output with side and tail lamps on. Armature circuit broken before field circuit. ------------------- (1) Inspect… | ||
| Scan060 | Procedure for testing electrical circuits and switch functions using a 12-volt battery and lamp. | ||
| View original record | -2- (a) First connect terminal No.6 to the positive of a 12 volt battery and connect one terminal of a 12 volt lamp (preferably a large c.p. C.M.F. lamp taking 4 amperes) to the negative end of the… | ||
| Scan061 | Cover letter for a revised production specification for the condenser for 20/25 and 40/50 battery ignition. | ||
| View original record | x6088 BY. From Hs/Wst. c. to BY/RD. c. to Sft/Mr.Brock. Hs/Wst.3/MA.11.5.33. x6113 x6087 CONDENSER FOR 20/25, AND 40/50 BATTERY IGNITION. We send you herewith revised production specification for the… | ||
| Scan062 | Production test procedure for a paper dielectric condenser for battery ignition. | ||
| View original record | PRODUCTION TEST OF PAPER DIELECTRIC CONDENSER FOR BATTERY IGNITION. (Paraffin waxed paper dielectric). (1) It is assumed that each condenser, after production and before encasing, will be stored for a… | ||
| Scan063 | List of testing procedures for condensers, including voltage, charge, capacity, and sparking tests. | ||
| View original record | -2- (5) If satisfactory as regards (2), (3) and (4), the condenser shall now be fitted up in its case. (6) The condenser, now in its case, shall be again tested by applying to its terminals a voltage… | ||
| Scan064 | Drawing comparing the profiles of two tested rods. | ||
| View original record | Tested Rod A 59367 A 59668 C.L.m. 1.V.41. | ||
| Scan065 | Reference note regarding a Thermionic rectifying valve for H.T. | ||
| View original record | X.6094. 1.1.31. For previous matter relating to Thermionic rectifying valve for H.T. see X.3646. | ||
| Scan066 | The type of thermionic rectifying valve used for ball gap voltage measurement from ignition coils and magnetos. | ||
| View original record | X.6094. EFCl/AD. 9th January, 1931. Mr. E.A. Watson, The M.L. Magneto Synd. Ltd. Victoria Works, Coventry. Dear Sir, We greatly appreciated the receipt of your letter ref. EAW/EE. of the 6th inst. in… | ||
| Scan067 | Letter from M-L Magneto Synd. Ltd. concerning a B.T.H. U3 rectifying valve for a High Tension Voltmeter. | ||
| View original record | X. 6094 TELEGRAMS: "CARLTON, COVENTRY." TELEPHONE 5001-2-3 The M-L Magneto Synd. Ltd. VICTORIA WORKS, COVENTRY. YOUR REFERENCE EFC1/AD OUR REFERENCE EAW/EE E.Fowler Clark, Esq., Messrs. Rolls-Royce… | ||
| Scan068 | Request to obtain particulars on thermionic rectifying valves for H.T. rectification. | ||
| View original record | X6094 Roy. from EFC. EFC2/ADL4.1.31. X.6094. THERMIONIC RECTIFYING VALVE FOR H.T. Some time ago we asked you to obtain for us from various firms particulars of H.T. rectifying valves, the result of… | ||
| Scan069 | Letter from The Edison Swan Electric Co. Ltd. regarding an obsolete B.T.H. U.3. valve and potential alternatives. | ||
| View original record | X6094. COPY. THE EDISON SWAN ELECTRIC CO. LTD. 23, GOLDSMITH STREET, NOTTINGHAM. Messrs. Rolls-Royce Ltd. Nightingale Rd. Derby. WN/WG. Roy/BEA3/EB15.1.31. 23rd January, 1931. Dear Sirs, Further to… | ||
| Scan070 | Specifications for a rectifying valve for a high-tension voltmeter. | ||
| View original record | X6094. Roy/GEA. from EFC. EFCl/AD27.1.31. X.6094. RECTIFYING VALVE FOR H.T. VOLTMETER. With reference to letter ref. WN/WG. of the 23rd inst. from the Ediswan Electric Co. the ball gap voltmeter we… | ||
| Scan071 | Letter from The Edison Swan Electric Company regarding a custom rectifying valve. | ||
| View original record | X6094 COPY. THE EDISON SWAN ELECTRIC COMPANY, LTD. 23, GOLDSMITH STREET, NOTTINGHAM. WN/WL. Roy/CGS5/EB9.2.31. Messrs. Rolls-Royce Ltd. Nightingale Rd. Derby.. 13th February, 1931. Dear Sir, With… | ||
| Scan072 | Specifications for a rectifying valve for H.T. for the Edison Swan Electric Co. | ||
| View original record | X6094. Roy. from EFC. EFC2/ADL 7.2.31. X.6094. RECTIFYING VALVE FOR H.T. We have duly perused the letter ref. WN/WL. of the 13th inst. from the Edison Swan Electric Co. concerning a valve of the above… | ||
| Scan073 | Specification document for a rectifying valve used in high tension DC insulation testing or ball gap voltage measurement. | ||
| View original record | SPECIFICATION OF RECTIFYING VALVE FOR H.T. D.C. INSULATION TESTING OR BALL CAP VOLTAGE MEASUREMENT. A suitable filament voltage would be 5.5 to 6.0. The purpose for which the valve is required (for… | ||
| Scan074 | Report page discussing modifications to a valve's anode diameter and filament support for a specific purpose. | ||
| View original record | -2- to yield. We were of the opinion that in order to make a valve suitable for our purposes it was only necessary to double the anode diameter and perhaps also give a central support to the filament.… | ||
| Scan075 | The procurement and specifications for a H.T. rectifying valve from the Edison Swan Electric Co. | ||
| View original record | X6094 Roy/GEA. from EFC. EFC2/AD26.2.31. X.6094. RECTIFYING VALVE FOR H.T. We have seen the further letter from the Edison Swan Electric Co. ref. WN/WL. of the 25th inst. in connection with their… | ||
| Scan076 | Inquiry to Joseph Lucas Ltd. regarding the type of high tension rectifying valve used for measuring coil voltage. | ||
| View original record | X6094. Hs/Wst.2/AD. January 26th, 1932. Messrs. Joseph Lucas Ltd. Great King St. Birmingham. For the attention of Mr. Watson. Dear Sirs, We should be glad if you could inform us of the type of high… | ||
| Scan077 | Letter from Joseph Lucas Limited concerning the valve used for Peak Voltage measurement. | ||
| View original record | REGISTERED OFFICES & GENERAL DEP'TS GREAT KING STREET, BIRMINGHAM LONDON OFFICE & SHOWROOMS 319, REGENT STREET, W.1. X6094. TRADE MARK JOSEPH LUCAS LIMITED ELECTRICAL DEPARTMENT WELL STREET BIRMINGHAM… | ||
| Scan078 | Enquiry for a high tension rectifying valve. | ||
| View original record | X6094 Roy/CGS. from Hs/Wst. Hs/Wst.2/ADL.3.32. HIGH TENSION RECTIFYING VALVE With reference to our enquiry re the above, we find that the type of valve used by other people for high voltage… | ||
| Scan079 | Enquiry to Joseph Lucas Ltd. regarding a promised valve and the progress on equipment for the Bentley, specifically starter motors. | ||
| View original record | X6094 Hs/Wst.6/AD. May 10th, 1932. Mr. E.A. Watson, Messrs. Joseph Lucas Ltd. Great King St., Birmingham. Dear Mr. Watson, Did you manage to discover anything about the valve you promised me? I am… | ||
| Scan080 | Letter from Joseph Lucas Limited regarding a broken valve. | ||
| View original record | X6094 REGISTERED OFFICES & GENERAL DEP'TS GREAT KING STREET, BIRMINGHAM LONDON OFFICE & SHOWROOMS 319, REGENT STREET, W. 1. JOSEPH LUCAS LIMITED ELECTRICAL DEPARTMENT WELL STREET BIRMINGHAM TELEPHONE:… | ||
| Scan081 | Requesting approval for the purchase of a new valve for an ignition voltage measurement apparatus. | ||
| View original record | X6094 (Hs/Wst) Hs/Wst.3/MA.12.5.32. IGNITION VOLTAGE MEASUREMENTS. For measuring the high voltages on ignition coils, magnetos and sparking plugs under pressure we have been using an apparatus… | ||