Leeds Northrup

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LEEDS  NORTHRUP VOLTAGE REGULATOR POWER SUPPLY 099012 10 MA DC 3VA
LEEDS NORTHRUP VOLTAGE REGULATOR POWER SUPPLY 099012 10 MA DC 3VA
$14.00
quality
L  N Leeds  Northrup 8690 2 Millivolt Potentiometer
L N Leeds Northrup 8690 2 Millivolt Potentiometer
$119.99
quality
Leeds  Northrup 074437 PC Board
Leeds Northrup 074437 PC Board
$750.00
quality
Leeds  Northrup 078555 PC Board
Leeds Northrup 078555 PC Board
$750.00
quality
Leeds  Northrup 074409 PC Board
Leeds Northrup 074409 PC Board
$175.00
quality
Leeds and Northrup Circle Chart Paper 620001
Leeds and Northrup Circle Chart Paper 620001
$15.00
quality
Leeds  Northrup 074471 Output Module
Leeds Northrup 074471 Output Module
$550.00
quality
LEEDS NORTHRUP 046375 REV C PCB CIRCUIT BOARD B470941
LEEDS NORTHRUP 046375 REV C PCB CIRCUIT BOARD B470941
$90.00
quality
LEEDS NORTHRUP 063918 PROCESSOR REV E1 E2 PCB CIRCUIT BOARD B470943
LEEDS NORTHRUP 063918 PROCESSOR REV E1 E2 PCB CIRCUIT BOARD B470943
$335.00
quality
LEEDS  NORTHRUP RED TYPE K 68 K68 CHART RECORDER
LEEDS NORTHRUP RED TYPE K 68 K68 CHART RECORDER
$93.00
quality
3 NEW LEEDS NORTHRUP 82 80 1004 03 GREEN MARKER 8280100403
3 NEW LEEDS NORTHRUP 82 80 1004 03 GREEN MARKER 8280100403
$30.00
quality
Leeds  Northrup 2610 104 11 0 01 000 Flow Pressure Sensor Transmitter ELE3551
Leeds Northrup 2610 104 11 0 01 000 Flow Pressure Sensor Transmitter ELE3551
$350.00
quality
Leeds  Northrup 2610 104 11 0 01 000 Flow Pressure Sensor Transmitter ELE3552
Leeds Northrup 2610 104 11 0 01 000 Flow Pressure Sensor Transmitter ELE3552
$350.00
quality
Leeds  Northrup Flow Pressure Sensor Transmitter ELE3553
Leeds Northrup Flow Pressure Sensor Transmitter ELE3553
$425.00
quality
Leeds  Northrup 1 OHM Resistance Standard FE11
Leeds Northrup 1 OHM Resistance Standard FE11
$165.98
quality
Leeds  Northrup 10000 OHM Resistance Standard FE14
Leeds Northrup 10000 OHM Resistance Standard FE14
$165.98
quality
Leeds  Northrup 1 Meg OHM Resistance Standard FE13
Leeds Northrup 1 Meg OHM Resistance Standard FE13
$165.98
quality
Leeds  Northrup 1000 OHM Resistance Standard FE15
Leeds Northrup 1000 OHM Resistance Standard FE15
$165.98
quality
Leeds  Northrup 1 OHM Resistance Standard FE12
Leeds Northrup 1 OHM Resistance Standard FE12
$165.98
quality
Leeds  Northrup 10 OHM Resistance Standard FE8
Leeds Northrup 10 OHM Resistance Standard FE8
$165.98
quality
LOT OF 3 LEEDS AND NORTHRUP CONDUCTIVITY CELL CAT  4804 001 02 11 304 STAINLESS
LOT OF 3 LEEDS AND NORTHRUP CONDUCTIVITY CELL CAT 4804 001 02 11 304 STAINLESS
$129.00
quality
LEEDS  NORTHRUP 923 NUMATRON DIGITAL INDICATOR AS ISFOR PARTS
LEEDS NORTHRUP 923 NUMATRON DIGITAL INDICATOR AS ISFOR PARTS
$40.00
quality
LEEDS NORTHRUP 046448 PC CAPACITOR ASSEMBLY REV C3 C5 PCB CIRCUIT BOARD B471091
LEEDS NORTHRUP 046448 PC CAPACITOR ASSEMBLY REV C3 C5 PCB CIRCUIT BOARD B471091
$190.00
quality
LEEDS NORTHRUP A1A1A3A2 445848 PROGRAM PANEL RECORDER REV D PCB BOARD B47
LEEDS NORTHRUP A1A1A3A2 445848 PROGRAM PANEL RECORDER REV D PCB BOARD B47
$50.00
quality
Leeds  Northrup Speedomax Chart Recorder Used
Leeds Northrup Speedomax Chart Recorder Used
$35.00
quality
SLS1C23 LEEDS Northrup Instruments Dissovled Oxygen PPB 825SY
SLS1C23 LEEDS Northrup Instruments Dissovled Oxygen PPB 825SY
$350.00
quality
SLS1C23 LEEDS Northrup Instruments PPB Sodium 056434 7082 34  826SY
SLS1C23 LEEDS Northrup Instruments PPB Sodium 056434 7082 34 826SY
$300.00
quality
LEEDS AND NORTHRUP STRIP CHART RECORDER LR69323 90 132 180 264 VAC
LEEDS AND NORTHRUP STRIP CHART RECORDER LR69323 90 132 180 264 VAC
$75.00
quality
Leeds  Northrup Manual 2100 Lamp  Scale Reading Device Directions Manual
Leeds Northrup Manual 2100 Lamp Scale Reading Device Directions Manual
$16.00
quality
Leeds and Northrup Electromax 6012 3 04 1 0 00 00 100
Leeds and Northrup Electromax 6012 3 04 1 0 00 00 100
$325.00
quality
Leeds  Northrup Manual 2430 D C Galvanometer Directions Manual
Leeds Northrup Manual 2430 D C Galvanometer Directions Manual
$16.00
quality
Leeds  Northrup Manual 2430 D C Galvanometer Directions Manual Issue 3
Leeds Northrup Manual 2430 D C Galvanometer Directions Manual Issue 3
$16.00
quality
Leeds  Northrup Manual 2430 D C Galvanometer Directions Manual Issue 4
Leeds Northrup Manual 2430 D C Galvanometer Directions Manual Issue 4
$16.00
quality
Leeds  Northrup Manual 2436 Series Galvanometers Directions Manual Issue 3
Leeds Northrup Manual 2436 Series Galvanometers Directions Manual Issue 3
$16.00
quality
Leeds  Northrup Manual 2436 Series Galvanometers Directions Manual Issue 2
Leeds Northrup Manual 2436 Series Galvanometers Directions Manual Issue 2
$16.00
quality
Leeds  Northrup Manual 4285 Kelvin Bridge Ohmmeter Operating Directions Card
Leeds Northrup Manual 4285 Kelvin Bridge Ohmmeter Operating Directions Card
$12.00
quality
LEEDS NORTHRUP 063232 ANALOG MODULE CONTROL FOR 1650 CIRCUIT BOARD B201801
LEEDS NORTHRUP 063232 ANALOG MODULE CONTROL FOR 1650 CIRCUIT BOARD B201801
$85.75
quality
Vintage Leeds  Northrup Co Potentiometer historic lab voltage standard
Vintage Leeds Northrup Co Potentiometer historic lab voltage standard
$199.99
quality
LEEDS  NORTHRUP MILLIVOLT POTENTIOMETER CAT 8690 GALVANOMETER
LEEDS NORTHRUP MILLIVOLT POTENTIOMETER CAT 8690 GALVANOMETER
$30.00
quality
Vintage Leeds and Northrup Millivolt Galvanometer
Vintage Leeds and Northrup Millivolt Galvanometer
$99.95
quality
LEEDS  NORTHRUP MEREDIAN pH ELECTRODE 117486 NEW IN BOX
LEEDS NORTHRUP MEREDIAN pH ELECTRODE 117486 NEW IN BOX
$35.00
quality
Leeds  Northrup 056098 Digital Controller
Leeds Northrup 056098 Digital Controller
$129.95
quality
LEEDS NORTHRUP 4973 01 305 7 000 CONDUCTIVITY CELL TEMP COMPENSATOR D391861
LEEDS NORTHRUP 4973 01 305 7 000 CONDUCTIVITY CELL TEMP COMPENSATOR D391861
$181.28
quality
Vintage Leeds  Northrup Type S Test Set No 5300 This Ones a Beauty LOOK
Vintage Leeds Northrup Type S Test Set No 5300 This Ones a Beauty LOOK
$29.95
quality
LEEDS  NORTHRUP 7591 VOLT BOX POTENTIOMETER
LEEDS NORTHRUP 7591 VOLT BOX POTENTIOMETER
$195.00
quality
Leeds and Northrup SPDT Synchronous Converter 3338 1
Leeds and Northrup SPDT Synchronous Converter 3338 1
$0.99
quality
Vintage Leeds  Northrup Stromberg Carlson 42 51165 Potentiometer Body Parts
Vintage Leeds Northrup Stromberg Carlson 42 51165 Potentiometer Body Parts
$289.99
quality
Leeds  Northrup Co Attenuator Cat 7592
Leeds Northrup Co Attenuator Cat 7592
$21.00
quality
Leeds  Northrup Co Attenuator Cat 7593
Leeds Northrup Co Attenuator Cat 7593
$25.00
quality
LEEDS NORTHRUP 6011 3 08 1 7 00 00 103 ELECTROMAX CONTROLLER B437019
LEEDS NORTHRUP 6011 3 08 1 7 00 00 103 ELECTROMAX CONTROLLER B437019
$437.13
quality
Leeds  Northrup Electromax III Auto Tune Controller
Leeds Northrup Electromax III Auto Tune Controller
$299.00
quality
LEEDS  NORTHRUP 074435 USPP 074435
LEEDS NORTHRUP 074435 USPP 074435
$318.15
quality
NEW LEEDS NORTHRUP 445846 PCB CIRCUIT BOARD B471342
NEW LEEDS NORTHRUP 445846 PCB CIRCUIT BOARD B471342
$150.00
quality
NEW LEEDS  NORTHRUP 078691 REV D
NEW LEEDS NORTHRUP 078691 REV D
$599.00
quality
Leeds  Northrup Manual 4395 Precision Voltage Divider Directions Manual
Leeds Northrup Manual 4395 Precision Voltage Divider Directions Manual
$16.00
quality
Leeds  Northrup Manual 4395 Precision Voltage Divider Directions Man Issue 4
Leeds Northrup Manual 4395 Precision Voltage Divider Directions Man Issue 4
$16.00
quality
Leeds  Northrup Manual 4395 Precision Voltage Divider Directions Man Issue 2
Leeds Northrup Manual 4395 Precision Voltage Divider Directions Man Issue 2
$16.00
quality
Leeds  Northrup Manual 4395 Precision Voltage Divider Parts List 1965
Leeds Northrup Manual 4395 Precision Voltage Divider Parts List 1965
$12.00
quality
NEW LEEDS NORTHRUP 445860E A1A2A1X INPUT REV E PCB CIRCUIT BOARD B471526
NEW LEEDS NORTHRUP 445860E A1A2A1X INPUT REV E PCB CIRCUIT BOARD B471526
$250.00
quality
LEEDS  NORTHRUP HISTORIC LAB VOLTAGE STANDARD
LEEDS NORTHRUP HISTORIC LAB VOLTAGE STANDARD
$400.00
quality
LEEDS NORTHRUP 055867
LEEDS NORTHRUP 055867
$400.00
quality
LEEDS  NORTHRUP 2402 TEMPERATURE CONTROL NEW GENERAL SIGNAL   id6015 6 0
LEEDS NORTHRUP 2402 TEMPERATURE CONTROL NEW GENERAL SIGNAL id6015 6 0
$31.50
quality
Leeds  Northrup Temperature Control Output 441 1 20 31 51 A723 Unused
Leeds Northrup Temperature Control Output 441 1 20 31 51 A723 Unused
$500.00
quality
LEEDS  NORTHRUP SPEEDOMAX MINIATURE RECORDER CHART PAPER 537234 4 1 4 L
LEEDS NORTHRUP SPEEDOMAX MINIATURE RECORDER CHART PAPER 537234 4 1 4 L
$9.00
quality
NEW LEEDS NORTHRUP RED MARKER SET 82 27 0012 05
NEW LEEDS NORTHRUP RED MARKER SET 82 27 0012 05
$50.00
quality
NEW LEEDS NORTHRUP RED MARKER SET 054190
NEW LEEDS NORTHRUP RED MARKER SET 054190
$1.00
quality
Leeds  Northrup Ultrasonic Doppler Flowmeter 475 1 120 120V 25MA 4 20mA Used
Leeds Northrup Ultrasonic Doppler Flowmeter 475 1 120 120V 25MA 4 20mA Used
$74.65
quality
New Leeds  Northrup 018374 Alarm Assembly
New Leeds Northrup 018374 Alarm Assembly
$90.00
quality
Leeds  Northrup 117481 Electrode PH Measuring Gel Filled Diffusion Type
Leeds Northrup 117481 Electrode PH Measuring Gel Filled Diffusion Type
$165.00
quality
Leeds  Northrup 12 Multi Purpose Recorder Speedomax 210 2 Channel
Leeds Northrup 12 Multi Purpose Recorder Speedomax 210 2 Channel
$99.00
quality
VINTAGE LEEDS  NORTHRUP SELF INDUCTANCE Tester Milli Henrys
VINTAGE LEEDS NORTHRUP SELF INDUCTANCE Tester Milli Henrys
$40.00
quality
Leeds  Northrup linearizer 8888 Test Unit Power for parts or repair P9
Leeds Northrup linearizer 8888 Test Unit Power for parts or repair P9
$9.99
quality
Leeds  Northrup millivolt potentiometer 1940s
Leeds Northrup millivolt potentiometer 1940s
$180.00
quality
Leeds  Northrup 2610 100 12 2 01 300 802 809 Pressure Transmitter New Old Stk
Leeds Northrup 2610 100 12 2 01 300 802 809 Pressure Transmitter New Old Stk
$799.99
quality
Leeds  Northrup LN model LT 3946 10000 Ohm Lab Standard Resistor
Leeds Northrup LN model LT 3946 10000 Ohm Lab Standard Resistor
$995.00
quality
LEEDS  NORTHRUP POWER SUPPLY 099012  FOR PARTS REPAIR
LEEDS NORTHRUP POWER SUPPLY 099012 FOR PARTS REPAIR
$25.00
quality
VINTAGE 50s Leeds  Northrup Co Potentiometer NUCLEAR ERA
VINTAGE 50s Leeds Northrup Co Potentiometer NUCLEAR ERA
$300.00
quality
LEEDS  NORTHRUP Model 7555 TYPE K 5 POTENTIOMETER
LEEDS NORTHRUP Model 7555 TYPE K 5 POTENTIOMETER
$250.00
quality
LEEDS  NORTHRUP Model 7554 TYPE K 4 POTENTIOMETER
LEEDS NORTHRUP Model 7554 TYPE K 4 POTENTIOMETER
$275.00
quality
LEEDS  NORTHRUP Model 4232 PRECISION GUARDED WHEATSTONE BRIDGE
LEEDS NORTHRUP Model 4232 PRECISION GUARDED WHEATSTONE BRIDGE
$275.00
quality
LEEDS  NORTHRUP THERMOCOUPLE CAT 8867 VINTAGE 1123
LEEDS NORTHRUP THERMOCOUPLE CAT 8867 VINTAGE 1123
$150.00
quality
1960 USA Leeds  Northrup 4775 Decade Resistor Box GUARANTEED NOT CHINA
1960 USA Leeds Northrup 4775 Decade Resistor Box GUARANTEED NOT CHINA
$52.50
quality
Vintage LEEDS Northrup DC Null Detector Power Supply Test Meter Tube Based
Vintage LEEDS Northrup DC Null Detector Power Supply Test Meter Tube Based
$48.00
quality
Leeds  Northrup Kelvin Bridge Ohmmeter Wood Case 16x8 l Dials Bakelite Original
Leeds Northrup Kelvin Bridge Ohmmeter Wood Case 16x8 l Dials Bakelite Original
$99.00
quality
Leeds  Northrup Manual Directions On Card For Operating LN  5305 Test Set
Leeds Northrup Manual Directions On Card For Operating LN 5305 Test Set
$12.00
quality
Leeds  Northrup Manual Directions For Operating LN  5430 AM 1 Test Set
Leeds Northrup Manual Directions For Operating LN 5430 AM 1 Test Set
$8.00
quality
NEW LEEDS NORTHRUP 074621 REV C PCB CIRCUIT BOARD D481861
NEW LEEDS NORTHRUP 074621 REV C PCB CIRCUIT BOARD D481861
$180.00
quality
Leeds  Northrup Manual 7410 EO Specific Ion  pH meter Directions Manual w Sch
Leeds Northrup Manual 7410 EO Specific Ion pH meter Directions Manual w Sch
$24.00
quality
Leeds  Northrup Manual 7552 Potentiometer Operating Directions Manual w Schem
Leeds Northrup Manual 7552 Potentiometer Operating Directions Manual w Schem
$20.00
quality
Leeds  Northrup Manual 7553 5  7553 6 Type K3 Procedure for Certification
Leeds Northrup Manual 7553 5 7553 6 Type K3 Procedure for Certification
$16.00
quality
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Leeds Northrup

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All My STUFF !!!!!!!!!!!!! Part 18

History Of UK Car Registrations

Number Plate History
brief history of the u.k. car number plate system
"The Motor Car Act 1903" started everything off .It said that every car had to be registered with a county council or county borough council, and every car had to display a unique identifying number issued to them by such a council .
Initially each council was issued one letter to use on the number plates , they could not have known how popular the motor car was to become and as the number of cars increased they quickly ran out of combinations ,so they started to use two and then three letter combinations.
By 1963 several councils were close to the end of their allocation, so a 7th digit was added to the Number Plate System. This extra digit was a letter ,so post 1963 numbers had three letters then a space then up to 3 numbers and then another letter this last letter gave the age of the car.
Suffix Number Plate System
The Suffix Number Plate System
Table of "Age identifier " Suffix Letters.
A 1 Jan 63 - 31 Dec 63 H 1 Aug 69 - 31 Jul 70 R 1 Aug 76 - 31 Jul 77
B 1 Jan 64 - 31 Dec 64 J 1 Aug 70 - 31 Jul 71 S 1 Aug 77 - 31 Jul 78
C 1 Jan 65 - 31 Dec 65 K 1 Aug 71 - 31 Jul 72 T 1 Aug 78 - 31 Jul 79
D 1 Jan 66 - 31 Dec 66 L 1 Aug 72 - 31 Jul 73 V 1 Aug 79 - 31 Jul 80
E 1 Jan 67 - 31 Jul 67 M 1 Aug 73 - 31 Jul 74 W 1 Aug 80 - 31 Jul 81
F 1 Aug 67 - 31 Jul 68 N 1 Aug 74 - 31 Jul 75 X 1 Aug 81 - 31 Jul 82
G 1 Aug 68 - 31 Jul 69 P 1 Aug 75 - 31 Jul 76 Y 1 Aug 82 - 31 Jul 83
You may notice that a further complication to the number system came in 1967 when , under pressure from the motor car industry the changeover date was moved to August in an attempt to smooth out new car puchasing by the public.
It may also be noted that the letters I and Z ( used for N.Ireland) are missing as are Q ( reserved for kit cars and repaired write offs etc) and the letter U ( reason unknown).

The letters I Q Z O and U were never used as a suffix letter in fact I Q and Z were never used at all.
By 1983 they faced the same problem but deftly extended the system by reversing the number plate giving a letter first then up to 3 numbers then a space then 3 more letters. The first letter now gave the age of the car.
Prefix number plate system
The Prefix Number Plate System
Table of "Age identifier " Prefix Letters.
A 1 Aug 83 - 31 Jul 84 H 1 Aug 90 - 31 Jul 91 R 1 Aug 97 - 31 Jul 98
B 1 Aug 84 - 31 Jul 85 J 1 Aug 91 - 31 Jul 92 S 1 Aug 98 - 28 Feb 99
C 1 Aug 85 - 31 Jul 86 K 1 Aug 92 - 31 Jul 93 T 1 Mar 99 - 31 Aug 99
D 1 Aug 86 - 31 Jul 87 L 1 Aug 93 - 31 Jul 94 V 1 Sep 99 - 29 Feb 00
E 1 Aug 87 - 31 Jul 88 M 1 Aug 94 - 31 Jul 95 W 1 Mar 00 - 31 Aug 00
F 1 Aug 88 - 31 Jul 89 N 1 Aug 95 - 31 Jul 96 X 1 Sep 00 - 28 Feb 01
G 1 Aug 89 - 31 Jul 90 P 1 Aug 96 - 31 Jul 97 Y 1 Mar 01 - 31 Aug 01
It may be noted that the letters I and Z ( used for N.Ireland) are missing as are Q ( reserved for kit cars and repaired write offs etc) and the letter U ( reason unknown).

By 2001 the problem was looming again and the current system was introduced. Now each number plate has 7 digits and the first two letters give the region of the country where the car was first registered, followed by two numbers which give the age of the car and then three random letters . An example of this could be NE51 XXX. The NE tells you the car is from the North East of England (a table of these region identifiers is below ). The 51 tells you it was registered in September 2001 and the last three letters mean nothing.
Current Number Plate system
Current U.K. Number Plates System
The first two digits of each car registration denote the area of the country where the vehicle was first registered.
First Letter Issuing office Second Letter Possibilities
A Peterborough A B C D E F G H J K L M N
Norwich O P R S T U
Ipswich V W X Y
B Birmingham A - Y
C Cardiff A B C D E F G H J K L M N O
Swansea P R S T U V
Bangor W X Y
D Chester A B C D E F G H J K
Shrewsbury L M N O P R S T U V W X Y
E Chelmsford A - Y
F Nottingham A B C D E F G H J K L M N P
Lincoln R S T V W X Y
G Maidstone A B C D E F G H J K L M N O
Brighton P R S T U V W X Y
H Bournemouth A B C D E F G H J
Portsmouth K L M N O P R S T U V W X Y
HW Reserved for the Isle of Wight
K Luton A B C D E F G H J K L
Northampton M N O P R S T U V W X Y
L Wimbledon A B C D E F G H J
Stanmore K L M N O P R S T
Sidcup U V W X Y
M Manchester A - Y
N Newcastle A B C D E G H J K L M N O
Stockton P R S T U V W X Y
O Oxford A - Y
P Preston A B C D E F G H J K L M N O P R S T
Carlisle U V W X Y
R Reading A - Y
S Glasgow A B C D E F G H J
Edinburgh K L M N O
Dundee P R S T
Aberdeen U V W
Inverness X Y
V Worcester A - Y
W Exeter A B C D E F G H J
Truro K L
Bristol M N O P R S T U V W X Y
Y Leeds A B C D E F G H J K
Sheffield L M N O P R S T U
Beverley V W X YHave a look at my historic rally blog :-
More Historic Rally Information

My business website :-
Private Number Plates

Article Source: http://www.simplysearch4it.com/article/49544.html
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