Leeds Northrup

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LEEDS NORTHRUP A1A1AXA2X 12PIN PRE AMPLIFIER PCB CIRCUIT BOARD B348197
LEEDS NORTHRUP A1A1AXA2X 12PIN PRE AMPLIFIER PCB CIRCUIT BOARD B348197
$85.00
quality
Leeds  Northrup Model 8070 Standard Resistor
Leeds Northrup Model 8070 Standard Resistor
$126.75
quality
NEW LEEDS  NORTHRUP 152137 TEMPERATURE COMPENSATOR 4 3 4 LONG PROBE
NEW LEEDS NORTHRUP 152137 TEMPERATURE COMPENSATOR 4 3 4 LONG PROBE
$99.99
quality
NEW Leeds  Northrup Speedomax 250 Chart Paper Roll PN 01159573 545434 G
NEW Leeds Northrup Speedomax 250 Chart Paper Roll PN 01159573 545434 G
$15.99
quality
NEW LEEDS  NORTHRUP 7075 3 147 120 202 000 PH ANALYZER 70753147120202000
NEW LEEDS NORTHRUP 7075 3 147 120 202 000 PH ANALYZER 70753147120202000
$500.00
quality
LEEDS  NORTHRUP 228261 PC BOARD
LEEDS NORTHRUP 228261 PC BOARD
$595.00
quality
Leeds Northrup Cat 8070 Resistor Standard 10ohm
Leeds Northrup Cat 8070 Resistor Standard 10ohm
$89.99
quality
LEEDS  NORTHRUP SPDT SYNCHRONOUS CONVERTER 354156
LEEDS NORTHRUP SPDT SYNCHRONOUS CONVERTER 354156
$50.00
quality
Leeds and Northrup 130031 Voltage Standard Power Supply
Leeds and Northrup 130031 Voltage Standard Power Supply
$135.00
quality
Leeds  Northrup Model 4775 Decade Resistor Box
Leeds Northrup Model 4775 Decade Resistor Box
$39.99
quality
Leeds and Northrup chart paper 690112
Leeds and Northrup chart paper 690112
$5.00
quality
LEEDS  NORTHRUP LN MULTIPLE RANGE POTENTIOMETER INDICATOR
LEEDS NORTHRUP LN MULTIPLE RANGE POTENTIOMETER INDICATOR
$50.00
quality
CT ESTATE ATTIC FIND 1929 VINTAGE LEEDS AND NORTHRUP TYPE K POTENTIOMETER
CT ESTATE ATTIC FIND 1929 VINTAGE LEEDS AND NORTHRUP TYPE K POTENTIOMETER
$99.99
quality
Leeds  Northrup Portable Precision Potentiometer w Directions  Note Book
Leeds Northrup Portable Precision Potentiometer w Directions Note Book
$150.00
quality
Leeds  Northrup Co Volt Box Attenuator Cat 7592
Leeds Northrup Co Volt Box Attenuator Cat 7592
$18.00
quality
LOT 2 LEEDS NORTHRUP 10970 4 PNEUMATIC CONVERTER 20PSI SUPPLY 3 15PSI B215359
LOT 2 LEEDS NORTHRUP 10970 4 PNEUMATIC CONVERTER 20PSI SUPPLY 3 15PSI B215359
$40.00
quality
LEEDS NORTHRUP 10970 2 ELECTRO PNEUMATIC CONVERTER TRANSDUCER B215371
LEEDS NORTHRUP 10970 2 ELECTRO PNEUMATIC CONVERTER TRANSDUCER B215371
$30.00
quality
LEEDS AND NORTHRUP 8686 IS A MILLIVOLT POTENTIOMETER
LEEDS AND NORTHRUP 8686 IS A MILLIVOLT POTENTIOMETER
$75.00
quality
NEW LEEDS  NORTHRUP LOGIC BOARD 046263 NEW NO BOX
NEW LEEDS NORTHRUP LOGIC BOARD 046263 NEW NO BOX
$679.99
quality
Leeds Northrup 445855 Rev B 1 Mother Card A A1A1A1X
Leeds Northrup 445855 Rev B 1 Mother Card A A1A1A1X
$159.60
quality
Leeds and Northrup 445857 Rev C servo amplifier A1A1A1XA1
Leeds and Northrup 445857 Rev C servo amplifier A1A1A1XA1
$99.60
quality
Leeds  Northrup Star I Industrial Controller
Leeds Northrup Star I Industrial Controller
$100.00
quality
NEW LEEDS NORTHRUP 017138 SPEEDOMAX BALANCING 120V AC 2PH ELECTRIC MOTOR D289964
NEW LEEDS NORTHRUP 017138 SPEEDOMAX BALANCING 120V AC 2PH ELECTRIC MOTOR D289964
$90.00
quality
LEEDS  NORTHRUP LN 2420B GALVANOMETER
LEEDS NORTHRUP LN 2420B GALVANOMETER
$49.95
quality
NEW LEEDS NORTHRUP 070239 0 500 MICROMHOS CM CONDUCTANCE METER D460825
NEW LEEDS NORTHRUP 070239 0 500 MICROMHOS CM CONDUCTANCE METER D460825
$100.00
quality
Leeds  Northrup Reflective Mirror Galvanometer
Leeds Northrup Reflective Mirror Galvanometer
$39.95
quality
LEEDS AND NORTHRUP CONDUCTIVITY CELL 4801 10 03 11 000
LEEDS AND NORTHRUP CONDUCTIVITY CELL 4801 10 03 11 000
$50.00
quality
LEEDS  NORTHRUP 8064 A Resistance Thermometer Bridge Make Offer
LEEDS NORTHRUP 8064 A Resistance Thermometer Bridge Make Offer
$200.00
quality
LEEDS  NORTHRUP 7074 71 01 606 000 USPP 70747101606000
LEEDS NORTHRUP 7074 71 01 606 000 USPP 70747101606000
$47.77
quality
LEEDS  NORTHRUP 7074 71 01 641 000 USPP 70747101641000
LEEDS NORTHRUP 7074 71 01 641 000 USPP 70747101641000
$47.77
quality
VINTAGE LEEDS  NORTHRUP SELF INDUCTANCE Tester Milli Henrys
VINTAGE LEEDS NORTHRUP SELF INDUCTANCE Tester Milli Henrys
$40.00
quality
LEEDS AND NORTHRUP SERIES 165 250 SPEEDOMAX RECORDER
LEEDS AND NORTHRUP SERIES 165 250 SPEEDOMAX RECORDER
$1,099.99
quality
Vintage Leeds  Northrup Type K 3 7553 5 Universal Potentiometer Untested Gray
Vintage Leeds Northrup Type K 3 7553 5 Universal Potentiometer Untested Gray
$74.99
quality
081103 MICROMAX LEEDS NORTHRUP INTERFACE CONTROLLER
081103 MICROMAX LEEDS NORTHRUP INTERFACE CONTROLLER
$109.00
quality
Leeds  Northrup MICROFARAD Capacitor Bakelite Sangamo Electric Springfield Ill
Leeds Northrup MICROFARAD Capacitor Bakelite Sangamo Electric Springfield Ill
$49.99
quality
LEEDS  NORTHRUP Test Set Resistance Measurements Galvanometer w Wooden Box USN
LEEDS NORTHRUP Test Set Resistance Measurements Galvanometer w Wooden Box USN
$79.99
quality
Run up box Leeds  Northrup co CAT 9912
Run up box Leeds Northrup co CAT 9912
$55.99
quality
LEEDS  NORTHRUP ELECTROMAX 6013 3 04 1 7 00 00 100 Controller
LEEDS NORTHRUP ELECTROMAX 6013 3 04 1 7 00 00 100 Controller
$319.99
quality
Vintage Leeds  and Northrup Light Beam Projection Galvanometer 2430 C
Vintage Leeds and Northrup Light Beam Projection Galvanometer 2430 C
$59.00
quality
NEW LEEDS NORTHRUP 4973 01 305 1 000 CELL CONDUCTIVITY TRANSMITTER D292253
NEW LEEDS NORTHRUP 4973 01 305 1 000 CELL CONDUCTIVITY TRANSMITTER D292253
$160.00
quality
LN Decade Resistor Box 1 10K 4754 1ohm step 11K max LEEDS  NORTHRUP
LN Decade Resistor Box 1 10K 4754 1ohm step 11K max LEEDS NORTHRUP
$45.00
quality
LEEDS  NORTHRUP instruments CONTROLLER general signal
LEEDS NORTHRUP instruments CONTROLLER general signal
$333.00
quality
Leeds  Northrup 063908 Point Expansion Relay Board
Leeds Northrup 063908 Point Expansion Relay Board
$449.00
quality
LEEDS  NORTHRUP 205156 USPP 205156
LEEDS NORTHRUP 205156 USPP 205156
$1,095.15
quality
NEWLeeds  Northrup Chart Recording Instrument Paper No 30678562
NEWLeeds Northrup Chart Recording Instrument Paper No 30678562
$8.00
quality
LEEDS  NORTHRUP CO POTENTIOMETER
LEEDS NORTHRUP CO POTENTIOMETER
$130.00
quality
Leeds  Northrup Co 4030 B 100 Ohms Resistor TLE2281
Leeds Northrup Co 4030 B 100 Ohms Resistor TLE2281
$125.00
quality
Honeywell Leeds  Northrup Progeny CTX Controller
Honeywell Leeds Northrup Progeny CTX Controller
$750.00
quality
LN Leeds  Northrup CAT Controller Series 80
LN Leeds Northrup CAT Controller Series 80
$119.99
quality
LEEDS  NORTHRUP DECADE RESISTOR TYPE 4756
LEEDS NORTHRUP DECADE RESISTOR TYPE 4756
$150.00
quality
Leeds  Northrup Pressure Transmitter
Leeds Northrup Pressure Transmitter
$179.95
quality
Leeds Northrup 7073 1 03 105 6 50 129
Leeds Northrup 7073 1 03 105 6 50 129
$223.00
quality
LEEDS  NORTHRUP SPEEDOMAX H CHART PAPER GENERAL STRIP SA1
LEEDS NORTHRUP SPEEDOMAX H CHART PAPER GENERAL STRIP SA1
$16.14
quality
LEEDS  NORTHRUP 9912 RUN UP BOX
LEEDS NORTHRUP 9912 RUN UP BOX
$60.00
quality
LEEDS  NORTHRUP 074427 USPP 074427
LEEDS NORTHRUP 074427 USPP 074427
$393.75
quality
Leeds  Northrup 660912 Speedomax H Chart Paper
Leeds Northrup 660912 Speedomax H Chart Paper
$13.95
quality
 Leeds Northrup Vintage VOLTAGE STANDARD 1176957
Leeds Northrup Vintage VOLTAGE STANDARD 1176957
$249.99
quality
Leeds  Northrup PCB 234435
Leeds Northrup PCB 234435
$125.00
quality
Leeds  Northrup PCB 196443
Leeds Northrup PCB 196443
$100.00
quality
Antique Vtg LEEDS  NORTHRUP Electrical TEST SET Steam Punk Mad Scientist Prop
Antique Vtg LEEDS NORTHRUP Electrical TEST SET Steam Punk Mad Scientist Prop
$34.95
quality
Vintage Leeds  Northrup Model 8691 Millivolt Potentiometer w thermocpl convr
Vintage Leeds Northrup Model 8691 Millivolt Potentiometer w thermocpl convr
$79.99
quality
LEEDS  NORTHRUP 078691 REV D
LEEDS NORTHRUP 078691 REV D
$350.00
quality
LEEDS  NORTHRUP 074427 PC BOARD
LEEDS NORTHRUP 074427 PC BOARD
$300.00
quality
LEEDS  NORTHRUP 074463 PC BOARD
LEEDS NORTHRUP 074463 PC BOARD
$285.00
quality
Leeds  Northrup PCB 445859
Leeds Northrup PCB 445859
$150.00
quality
Leeds  Northrup PCB 445847
Leeds Northrup PCB 445847
$350.00
quality
LEEDS  NORTHRUP 078697 ADAPTER MODULE REV A1 A1
LEEDS NORTHRUP 078697 ADAPTER MODULE REV A1 A1
$775.00
quality
LEEDS  NORTHRUP 078697 ADAPTER MODULE REVB
LEEDS NORTHRUP 078697 ADAPTER MODULE REVB
$775.00
quality
Leeds  Northrup 074825 CAT Manual Station 120 220V 4A
Leeds Northrup 074825 CAT Manual Station 120 220V 4A
$49.99
quality
Leeds  Northrup 4040B Standard Resistor
Leeds Northrup 4040B Standard Resistor
$316.00
quality
Antique Vintage Leeds  Northrup LN Model 5305 Resistance 9999 Ohms Test Set
Antique Vintage Leeds Northrup LN Model 5305 Resistance 9999 Ohms Test Set
$72.44
quality
Leeds  Northrup Kelvin Bridge Ohmmeter No 4285
Leeds Northrup Kelvin Bridge Ohmmeter No 4285
$19.99
quality
Leeds  Northrup Model 8686 Millivolt potentiometer
Leeds Northrup Model 8686 Millivolt potentiometer
$50.00
quality
LEEDS  NORTHRUP 01090406 CHART PAPER NEW IN A BOX
LEEDS NORTHRUP 01090406 CHART PAPER NEW IN A BOX
$12.00
quality
LEEDS  NORTHRUP INSTRUMENTS 10970 40 NEW OUT OF BOX
LEEDS NORTHRUP INSTRUMENTS 10970 40 NEW OUT OF BOX
$280.00
quality
LEEDS NORTHRUP 1026710250100101 CONTROLLER USED
LEEDS NORTHRUP 1026710250100101 CONTROLLER USED
$250.00
quality
New Leeds  Northrup Conductivity Cell w TempComp 4973 1 210 7 000 A1 957
New Leeds Northrup Conductivity Cell w TempComp 4973 1 210 7 000 A1 957
$385.00
quality
LEEDS  NORTHRUP RUN UP BOX 9912
LEEDS NORTHRUP RUN UP BOX 9912
$49.99
quality
LEEDS  NORTHRUP 056857 REVC RELAY BOARD NEW IN BOX
LEEDS NORTHRUP 056857 REVC RELAY BOARD NEW IN BOX
$440.00
quality
LEEDS  NORTHRUP THOMAS TYPE 1 OHM STANDARD 4210 NICE
LEEDS NORTHRUP THOMAS TYPE 1 OHM STANDARD 4210 NICE
$1,250.00
quality
LEEDS  NORTHRUP SILSBEE CURRENT TRANSFORMER TESTING SET 7150
LEEDS NORTHRUP SILSBEE CURRENT TRANSFORMER TESTING SET 7150
$375.00
quality
LEEDS NORTHRUP CAT 4393 UNIVERSAL RATIO SET
LEEDS NORTHRUP CAT 4393 UNIVERSAL RATIO SET
$275.00
quality
LEEDS NORTHRUP 10418359 NEW IN BOX
LEEDS NORTHRUP 10418359 NEW IN BOX
$10.00
quality
LEEDS  NORTHRUP CONDUCTIVITY 4973 1 306 7 NICE
LEEDS NORTHRUP CONDUCTIVITY 4973 1 306 7 NICE
$275.00
quality
New Leeds  Northrup 1500 Controller NIB
New Leeds Northrup 1500 Controller NIB
$179.99
quality
Leeds  Northrup Co Portable Galvanometer
Leeds Northrup Co Portable Galvanometer
$29.99
quality
LEEDS  NORTHRUP Genaral Radio Co Condenser Calibrator 75841 Rare Find
LEEDS NORTHRUP Genaral Radio Co Condenser Calibrator 75841 Rare Find
$96.79
quality
LEEDS  NORTHRUP 055867 AMPLIFIER MULTIRANGE BOARD USED
LEEDS NORTHRUP 055867 AMPLIFIER MULTIRANGE BOARD USED
$240.00
quality
LEEDS  NORTHRUP 063218 REVB1 B1 USED
LEEDS NORTHRUP 063218 REVB1 B1 USED
$430.00
quality
LEEDS  NORTHRUP 676652 SPEEDOMAX 250 CHART PAPER NEW IN A BOX
LEEDS NORTHRUP 676652 SPEEDOMAX 250 CHART PAPER NEW IN A BOX
$10.00
quality
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Leeds Northrup

See More About:    General Purpose        Damper Actuator        Slow Blow        
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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