Leeds Northrup

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Leeds  Northrup 7082 12 PH Analyzer TLE2206
Leeds Northrup 7082 12 PH Analyzer TLE2206
$195.00
quality
LEEDS  NORTHRUP 046313 OUTPUT CIRCUIT BOARD MODULE REV REVISION E 75561
LEEDS NORTHRUP 046313 OUTPUT CIRCUIT BOARD MODULE REV REVISION E 75561
$119.99
quality
LEEDS  NORTHRUP 7082 12 USPP 708212
LEEDS NORTHRUP 7082 12 USPP 708212
$989.00
quality
LEEDS NORTHRUP A1A1A1X 445855 REV B1 MOTHER CARD A CIRCUIT BOARD 75567
LEEDS NORTHRUP A1A1A1X 445855 REV B1 MOTHER CARD A CIRCUIT BOARD 75567
$169.99
quality
LEEDS AND NORTHRUP A1AXA2X 445859 9145 JLAC 2 PRE AMPLIFIER BOARD 75564
LEEDS AND NORTHRUP A1AXA2X 445859 9145 JLAC 2 PRE AMPLIFIER BOARD 75564
$169.99
quality
LEEDS  NORTHRUP A1AXA2X 445859 REV P P1 PC PRE AMPLIFIER BOARD 75562
LEEDS NORTHRUP A1AXA2X 445859 REV P P1 PC PRE AMPLIFIER BOARD 75562
$169.99
quality
LEEDS  NORTHRUP A1AXA2X 445859 REV P PC PRE AMPLIFIER BOARD 75563
LEEDS NORTHRUP A1AXA2X 445859 REV P PC PRE AMPLIFIER BOARD 75563
$169.99
quality
LEEDS  NORTHRUP LN CIRCUIT BOARD 074867
LEEDS NORTHRUP LN CIRCUIT BOARD 074867
$65.00
quality
Leeds  Northrup 2J3M13 G5 3 4 1 T Thermocouple
Leeds Northrup 2J3M13 G5 3 4 1 T Thermocouple
$42.50
quality
Leeds  Northrup Model 8692 Type K Temperature Potentiometer
Leeds Northrup Model 8692 Type K Temperature Potentiometer
$100.00
quality
Leeds  Northrup LN model LT 2422 200 Ohm Lab Standard Resistor certified
Leeds Northrup LN model LT 2422 200 Ohm Lab Standard Resistor certified
$895.00
quality
Leeds  Northrup LN model LT 3031 2000 Ohm Lab Standard Resistor certified
Leeds Northrup LN model LT 3031 2000 Ohm Lab Standard Resistor certified
$895.00
quality
Leeds  Northrup LN Model LT 2435 3000 Ohm Lab Standard Resistor certified
Leeds Northrup LN Model LT 2435 3000 Ohm Lab Standard Resistor certified
$895.00
quality
Leeds  Northrup LN model LT 4024 4000 Ohm Lab Standard Resistor certified
Leeds Northrup LN model LT 4024 4000 Ohm Lab Standard Resistor certified
$895.00
quality
Leeds  Northrup LN model LT 4283 675 Ohm Lab Standard Resistor certified
Leeds Northrup LN model LT 4283 675 Ohm Lab Standard Resistor certified
$595.00
quality
Leeds  Northrup LN 2 Ohm Lab Standard Resistor certified
Leeds Northrup LN 2 Ohm Lab Standard Resistor certified
$595.00
quality
Leeds  Northrup LN 3 Ohm Lab Standard Resistor certified
Leeds Northrup LN 3 Ohm Lab Standard Resistor certified
$175.00
quality
LeedsNorthrup LN model LT 3636 36 Ohm Lab Standard Resistor certified
LeedsNorthrup LN model LT 3636 36 Ohm Lab Standard Resistor certified
$595.00
quality
LeedsNorthrup LN model LT 2801 500 Ohm Lab Standard Resistor certified
LeedsNorthrup LN model LT 2801 500 Ohm Lab Standard Resistor certified
$895.00
quality
Vintage Leeds  Northrup Temperature Potentiometer model 8693 Untested
Vintage Leeds Northrup Temperature Potentiometer model 8693 Untested
$35.00
quality
Leeds  Northrup 4385 Shunt Box Unknown condition Looks OK
Leeds Northrup 4385 Shunt Box Unknown condition Looks OK
$17.99
quality
LEEDS  NORTHRUP 8691 2 USPP 86912
LEEDS NORTHRUP 8691 2 USPP 86912
$92.00
quality
Leeds  Northrup Series 80 PAT Controller Instruction Manual Original
Leeds Northrup Series 80 PAT Controller Instruction Manual Original
$27.99
quality
Leeds  Northrup Series 80 CAT Controller Instruction Manual Original
Leeds Northrup Series 80 CAT Controller Instruction Manual Original
$27.99
quality
Leeds  Northrup Series 80 DAT Controller Instruction Manual Original
Leeds Northrup Series 80 DAT Controller Instruction Manual Original
$27.99
quality
LEEDS NORTHRUP 5305 RESISTENCE BRIDGE
LEEDS NORTHRUP 5305 RESISTENCE BRIDGE
$125.00
quality
NEW LEEDS NORTHRUP 022973 DISPOSABLE MARKER BOX OF 3
NEW LEEDS NORTHRUP 022973 DISPOSABLE MARKER BOX OF 3
$20.00
quality
LEEDS  NORTHRUP 16 PT RELAY OUTPUT MOD 064319 USED M O
LEEDS NORTHRUP 16 PT RELAY OUTPUT MOD 064319 USED M O
$74.99
quality
Red Leeds Northrup Chart Recorder Pen 82 80 3002 03 RED MKR
Red Leeds Northrup Chart Recorder Pen 82 80 3002 03 RED MKR
$15.00
quality
Green Leeds Northrup Chart Recorder Pen 82 80 1004 03 GREEN
Green Leeds Northrup Chart Recorder Pen 82 80 1004 03 GREEN
$9.95
quality
Blue Leeds Northrup Chart Recorder Pen 82 80 2003 03 BLUE
Blue Leeds Northrup Chart Recorder Pen 82 80 2003 03 BLUE
$9.95
quality
Leeds  Northrup LN 10769 10769 G Control Units for Electric Furnace Directions
Leeds Northrup LN 10769 10769 G Control Units for Electric Furnace Directions
$12.00
quality
Leeds  Northrup LN 10760 Series Control Units Parts Catalog
Leeds Northrup LN 10760 Series Control Units Parts Catalog
$12.00
quality
Leeds  Northrup LN 1554 A2 Capacitance  Conductance Bridge Directions
Leeds Northrup LN 1554 A2 Capacitance Conductance Bridge Directions
$12.00
quality
Leeds  Northrup LN 2437 DC Null Detector Directions
Leeds Northrup LN 2437 DC Null Detector Directions
$14.00
quality
Leeds  Northrup LN Series 38 Pneumatic Control Parts Catalog
Leeds Northrup LN Series 38 Pneumatic Control Parts Catalog
$12.00
quality
Leeds  Northrup LN 4232 A1 Precision Guarded Resistance Facility Directions
Leeds Northrup LN 4232 A1 Precision Guarded Resistance Facility Directions
$10.00
quality
Leeds  Northrup LN 4249 Megohm Micromho Resistance Standard Directions
Leeds Northrup LN 4249 Megohm Micromho Resistance Standard Directions
$12.00
quality
Leeds  Northrup LN 4737 4737 1 4737 A20 4737 A21 Bridge Calibration Directions
Leeds Northrup LN 4737 4737 1 4737 A20 4737 A21 Bridge Calibration Directions
$12.00
quality
Leeds  Northrup LN 4905 Series Conductivity Cells Directions
Leeds Northrup LN 4905 Series Conductivity Cells Directions
$14.00
quality
Leeds  Northrup LN 6430 6460 Series Electromax III Controllers Directions
Leeds Northrup LN 6430 6460 Series Electromax III Controllers Directions
$24.50
quality
Leeds  Northrup LN 7553 5 7553 6 Type K 3 Universal Potentiometers Directions
Leeds Northrup LN 7553 5 7553 6 Type K 3 Universal Potentiometers Directions
$21.00
quality
Leeds  Northrup LN Series 80 3 Action DAT Controller Directions
Leeds Northrup LN Series 80 3 Action DAT Controller Directions
$17.50
quality
Leeds  Northrup LN Speedomax G H W 6430 6460 Series 80 60 Directions  MORE
Leeds Northrup LN Speedomax G H W 6430 6460 Series 80 60 Directions MORE
$95.00
quality
The Leeds  Northrup Co resistance bridge vintage great condition
The Leeds Northrup Co resistance bridge vintage great condition
$15.00
quality
LEEDS  NORTHRUP LN BARBER COLMAN ACTUATOR 10218 1 0
LEEDS NORTHRUP LN BARBER COLMAN ACTUATOR 10218 1 0
$75.00
quality
Leeds  Northrup 074825 CAT Manual Station 120 220V 4A
Leeds Northrup 074825 CAT Manual Station 120 220V 4A
$49.99
quality
Leeds  Northrup LN 2430 C light beam galvanometer NIST cald
Leeds Northrup LN 2430 C light beam galvanometer NIST cald
$195.00
quality
LEEDS  NORTHRUP ELECTRIC MOTOR HOLTZER CABOT RBT2505 017200 120 VOLTS
LEEDS NORTHRUP ELECTRIC MOTOR HOLTZER CABOT RBT2505 017200 120 VOLTS
$29.99
quality
Leeds And Northrup Volt Box 7592
Leeds And Northrup Volt Box 7592
$9.95
quality
LEEDS  NORTHRUP CO 5305 TEST SET RESISTANCE MEASUREMENTS GALVANOMETER
LEEDS NORTHRUP CO 5305 TEST SET RESISTANCE MEASUREMENTS GALVANOMETER
$170.00
quality
LEEDS  NORTHRUP CONDUCTIVITY CELL TEMPERATURE 20 FT GOLD 4905 04 33 088 20
LEEDS NORTHRUP CONDUCTIVITY CELL TEMPERATURE 20 FT GOLD 4905 04 33 088 20
$79.99
quality
Leeds  Northrup Instruments CAT Manual Station 074825 Programmable Input Output
Leeds Northrup Instruments CAT Manual Station 074825 Programmable Input Output
$98.00
quality
Leeds  Northrup TC16 Temperature Controller
Leeds Northrup TC16 Temperature Controller
$19.99
quality
Leeds  Northrup TC8 Temperature Controller
Leeds Northrup TC8 Temperature Controller
$19.99
quality
Lot 4 LEEDS  NORTHRUP SPEEDOMAX G CHART PAPER 100 LINE
Lot 4 LEEDS NORTHRUP SPEEDOMAX G CHART PAPER 100 LINE
$33.99
quality
LEEDS  NORTHRUP 080421 ANALOG INPUT
LEEDS NORTHRUP 080421 ANALOG INPUT
$100.00
quality
Leeds  Northrup 2610 Differential Transmitter 2610 103 12 2 00 400 302 809
Leeds Northrup 2610 Differential Transmitter 2610 103 12 2 00 400 302 809
$250.00
quality
LEEDS  NORTHRUP A1A2A1X CIRCUIT BOARD 063908WARRANTY
LEEDS NORTHRUP A1A2A1X CIRCUIT BOARD 063908WARRANTY
$185.00
quality
LEEDS AND NORTHRUP COMPANY METER TESTED IN 1969 VINTAGE
LEEDS AND NORTHRUP COMPANY METER TESTED IN 1969 VINTAGE
$40.00
quality
Leeds  Northrup LN Standard Resistor 1 Ohm S N 1090719 Cat 4020 Vintage
Leeds Northrup LN Standard Resistor 1 Ohm S N 1090719 Cat 4020 Vintage
$24.99
quality
Vintage Lab Western Electric 96A Test Set Leeds  Northrup test equipment
Vintage Lab Western Electric 96A Test Set Leeds Northrup test equipment
$150.00
quality
LEEDS  NORTHRUP 117038 GLASS PH ELECTRODE NIB
LEEDS NORTHRUP 117038 GLASS PH ELECTRODE NIB
$39.99
quality
Leeds  Northrup 4221 B 01 ohm Reichsanstalt Standard Resistor
Leeds Northrup 4221 B 01 ohm Reichsanstalt Standard Resistor
$275.00
quality
NEW LEEDS  NORTHRUP PRESSURE TRANSMITTER 2610 100 11 2 00 206
NEW LEEDS NORTHRUP PRESSURE TRANSMITTER 2610 100 11 2 00 206
$214.99
quality
LEEDS  NORTHRUP PRESSURE TRANSMITTER MODEL 2610 100 11 2 01 206
LEEDS NORTHRUP PRESSURE TRANSMITTER MODEL 2610 100 11 2 01 206
$149.99
quality
NEW LEEDS  NORTHRUP PRESSURE TRANSMITTER 2630 104 11 0 01 809
NEW LEEDS NORTHRUP PRESSURE TRANSMITTER 2630 104 11 0 01 809
$224.99
quality
Leeds  Northrup 8888 20 30 0 8803 0 11 Linearizer 8888 8888203008803011
Leeds Northrup 8888 20 30 0 8803 0 11 Linearizer 8888 8888203008803011
$185.00
quality
NEW LEEDS NORTHRUP CONTROL ASSEMBLY 352845
NEW LEEDS NORTHRUP CONTROL ASSEMBLY 352845
$69.00
quality
LEEDS NORTHRUP SPECIFIC CONDUCTANCE METER TESTER Micromhos cm FREE SHIPPING
LEEDS NORTHRUP SPECIFIC CONDUCTANCE METER TESTER Micromhos cm FREE SHIPPING
$79.99
quality
LEEDS  NORTHRUP ELECTROMAX CONTROLLER 6012 3 03 1 7 00 00 100 W BOOK E6
LEEDS NORTHRUP ELECTROMAX CONTROLLER 6012 3 03 1 7 00 00 100 W BOOK E6
$179.00
quality
LEEDS  NORTHRUP ELECTROMAX CONTROLLER 6012 3 03 1 7 00 00 100 E6
LEEDS NORTHRUP ELECTROMAX CONTROLLER 6012 3 03 1 7 00 00 100 E6
$149.99
quality
Leeds  Northrup Circuit Board A4 054904
Leeds Northrup Circuit Board A4 054904
$495.00
quality
Leeds  Northrup Potentiometer Facillity w 9462 A Galvanometer Primary Standard
Leeds Northrup Potentiometer Facillity w 9462 A Galvanometer Primary Standard
$1,900.00
quality
LEEDS AND NORTHRUP INSTRUMENTS DELTA P CELL  90 NLG 83935B 2 NEW
LEEDS AND NORTHRUP INSTRUMENTS DELTA P CELL 90 NLG 83935B 2 NEW
$99.00
quality
LEEDS  NORTHRUP 074495 USPP 074495
LEEDS NORTHRUP 074495 USPP 074495
$566.38
quality
LEEDS NORTHRUP KEVIN BRIDGE CAT NO 4288
LEEDS NORTHRUP KEVIN BRIDGE CAT NO 4288
$325.00
quality
LEEDS  NORTHRUP 074867 USPP 074867
LEEDS NORTHRUP 074867 USPP 074867
$258.75
quality
Leeds  Northrup Distributed Processing Unit 555 2 F F
Leeds Northrup Distributed Processing Unit 555 2 F F
$495.00
quality
Leeds  Northrup Systems 064314
Leeds Northrup Systems 064314
$449.00
quality
Leeds and Northrup Systems Module Output Quad PAT 564 9 0 N 9406
Leeds and Northrup Systems Module Output Quad PAT 564 9 0 N 9406
$595.00
quality
Leeds  Northrup Systems 564 9 0 K
Leeds Northrup Systems 564 9 0 K
$495.00
quality
Leeds  Northrup Systems Circuit Board Counter Timer 056516
Leeds Northrup Systems Circuit Board Counter Timer 056516
$495.00
quality
Leeds  Northrup Module Input 056662
Leeds Northrup Module Input 056662
$495.00
quality
Leeds and Northrup Systems Module Relay Output 064319
Leeds and Northrup Systems Module Relay Output 064319
$495.00
quality
Leeds and Northrup Systems Module Digital 120 VAC 056521
Leeds and Northrup Systems Module Digital 120 VAC 056521
$495.00
quality
GENERAL SIGNAL LEEDS  NORTHRUP SPEEDOMAX RECORDER
GENERAL SIGNAL LEEDS NORTHRUP SPEEDOMAX RECORDER
$399.99
quality
Leeds and Northrup Systems Module Output Quad Pat 080401
Leeds and Northrup Systems Module Output Quad Pat 080401
$495.00
quality
Leeds and Northrup Keyboard 115 29757
Leeds and Northrup Keyboard 115 29757
$849.00
quality
LEEDS NORTHRUP 444508 NAPC 2A 8607T PCB CIRCUIT BOARD AMPLIFIER REV RH B206879
LEEDS NORTHRUP 444508 NAPC 2A 8607T PCB CIRCUIT BOARD AMPLIFIER REV RH B206879
$300.00
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

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