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Antique Leeds & Northrup Single Range Potentiometer Indicator (PART)
Antique Leeds & Northrup Single Range Potentiometer Indicator (PART)

$99.99

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Leeds & Northrup PreAmplifier Recorder 445859 12 Pin
Leeds & Northrup PreAmplifier Recorder 445859 12 Pin

$480.94

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🍊Vintage 1960s Leeds & Northrup Percent of Range DC Microvolts | POWERS ON!
🍊Vintage 1960s Leeds & Northrup Percent of Range DC Microvolts | POWERS ON!

$60.00

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Leeds & Northrup Type S Test Set #5300 , Vintage - Very good condition.
Leeds & Northrup Type S Test Set #5300 , Vintage - Very good condition.

$225.00

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VINTAGE LEEDS & NORTHRUP TEST SET MODEL 5430-AM-1
VINTAGE LEEDS & NORTHRUP TEST SET MODEL 5430-AM-1

$29.99

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Vintage Leeds & Northrup Resistor
Vintage Leeds & Northrup Resistor

$200.00

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VINTAGE LARGE LEEDS & NORTHRUP 1032236 RESISTANCE WHEATSTONE BRIDGE US AIR FORCE
VINTAGE LARGE LEEDS & NORTHRUP 1032236 RESISTANCE WHEATSTONE BRIDGE US AIR FORCE

$499.99

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Historic Leeds & Northrup L&N No. 5305 Test Instrument Galvanmeter North Wales
Historic Leeds & Northrup L&N No. 5305 Test Instrument Galvanmeter North Wales

$47.97

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Leeds & Northrup 4045-B 100,000 ohm presision resistor
Leeds & Northrup 4045-B 100,000 ohm presision resistor

$50.00

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LEEDS & NORTHRUP CO. 099248 Current Source *MADE IN USA
LEEDS & NORTHRUP CO. 099248 Current Source *MADE IN USA

$74.95

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Vintage Weston Cell Eppley Laboratory, Antique Leeds & Northrup Standard Battery
Vintage Weston Cell Eppley Laboratory, Antique Leeds & Northrup Standard Battery

$79.95

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Vintage Leeds & Northrup Reflecting Galvanometer 2500F Type R 1930s/40s
Vintage Leeds & Northrup Reflecting Galvanometer 2500F Type R 1930s/40s

$69.00

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Leeds & Northrup 7673 Thermionic Amplifier Vintage Potentiometer Analog Meter
Leeds & Northrup 7673 Thermionic Amplifier Vintage Potentiometer Analog Meter

$299.95

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LEEDS & NORTHRUP SYSTEMS 056511 REV.C/D USED
LEEDS & NORTHRUP SYSTEMS 056511 REV.C/D USED

$350.00

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NEW Honeywell Leeds Northrup 046280 Analyzer Interface Board W/ Keypad
NEW Honeywell Leeds Northrup 046280 Analyzer Interface Board W/ Keypad

$400.00

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Leeds & Northrup 4801-25-03-22-073 Conductivity Cell
Leeds & Northrup 4801-25-03-22-073 Conductivity Cell

$209.25

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Leeds & Northrup's River Queens Poster 18x24 Mississippi Wheelers of the 1800"s
Leeds & Northrup's River Queens Poster 18x24 Mississippi Wheelers of the 1800"s

$14.99

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Vintage Leeds & Northrup Kelvin Bridge 4286 Ohmmeter Precision Type in Oak Case
Vintage Leeds & Northrup Kelvin Bridge 4286 Ohmmeter Precision Type in Oak Case

$40.00

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Leeds & Northrup AC to DC Power Supply Model 9876-M 0-10 / 0-100 Rack Mountable
Leeds & Northrup AC to DC Power Supply Model 9876-M 0-10 / 0-100 Rack Mountable

$62.89

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VINTAGE LEEDS & NORTHRUP 099012 REGULATED REFERENCE POWER SUPPLY
VINTAGE LEEDS & NORTHRUP 099012 REGULATED REFERENCE POWER SUPPLY

$20.00

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Historic Leeds & Northrup L&N Type “S” Test Instrument Wooden Case
Historic Leeds & Northrup L&N Type “S” Test Instrument Wooden Case

$55.00

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LEEDS & NORTHRUP CURRENT MODULE LOT OF 2 FREE SHIPPING
LEEDS & NORTHRUP CURRENT MODULE LOT OF 2 FREE SHIPPING

$36.00

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Vintage Leeds & Northrup Co. Galvanometer
Vintage Leeds & Northrup Co. Galvanometer

$46.00

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VINTAGE LEEDS & NORTHRUP RESISTANCE STANDARD FREE SHIPPING
VINTAGE LEEDS & NORTHRUP RESISTANCE STANDARD FREE SHIPPING

$68.00

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Antique 21" x 5" Wheatstone Bridge Slide Wire Mfg. By Leeds & Northrup Co.
Antique 21" x 5" Wheatstone Bridge Slide Wire Mfg. By Leeds & Northrup Co.

$34.95

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Vintage Leeds & Northrup Potentiometer Coil Scientific Part Brass Base
Vintage Leeds & Northrup Potentiometer Coil Scientific Part Brass Base

$95.00

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Vintage LEEDS & NORTHRUP 4340 Slide Wire Wheatstone Resistance Bridge, Pristine!
Vintage LEEDS & NORTHRUP 4340 Slide Wire Wheatstone Resistance Bridge, Pristine!

$269.10

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LEEDS & NORTHRUP KS 9470 NULL VOLTAGE TEST SET M3012
LEEDS & NORTHRUP KS 9470 NULL VOLTAGE TEST SET M3012

$89.00

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NEW Honeywell Leeds Northrup 005791 Control Board Alarm Card Rev G/G
NEW Honeywell Leeds Northrup 005791 Control Board Alarm Card Rev G/G

$300.00

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Leeds & Northrup Students Potentiometer 7645 Vintage Laboratory Trainer
Leeds & Northrup Students Potentiometer 7645 Vintage Laboratory Trainer

$99.95

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Leeds & Northrup 4020-B 1 OHM Standard Resistor 1694461
Leeds & Northrup 4020-B 1 OHM Standard Resistor 1694461

$115.99

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Leeds & Northrup 8687 Volt Potentiometer
Leeds & Northrup 8687 Volt Potentiometer

$25.00

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USED LEEDS & NORTHRUP MULTIPLE RANGE POTENTIOMETER INDICATOR 1010995 (P2)
USED LEEDS & NORTHRUP MULTIPLE RANGE POTENTIOMETER INDICATOR 1010995 (P2)

$65.00

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Leeds & Northrup Resistance Box Light Works! But Untested
Leeds & Northrup Resistance Box Light Works! But Untested

$33.00

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Vintage Leeds & Northrup ~ Decade Resistor Box ~ #75947
Vintage Leeds & Northrup ~ Decade Resistor Box ~ #75947

$75.00

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VINTAGE LEEDS & NORTHRUP POTENTIOMETER SCIENTIFIC TESTING INSTRUMENT/METER
VINTAGE LEEDS & NORTHRUP POTENTIOMETER SCIENTIFIC TESTING INSTRUMENT/METER

$89.96

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LEEDS & NORTHRUP SPEEDOMAX W/L Graph Recorder Untested
LEEDS & NORTHRUP SPEEDOMAX W/L Graph Recorder Untested

$85.99

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Leeds & Northrup 338419 Double Ribbon Cable
Leeds & Northrup 338419 Double Ribbon Cable

$46.77

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Leeds & Northrup Process Controller
Leeds & Northrup Process Controller

$150.00

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Antique Leeds & Northrup Model KS-13842 Potentiometer Bridge
Antique Leeds & Northrup Model KS-13842 Potentiometer Bridge

$39.00

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1953 Press Photo Peggy Van with Thermoplex Leeds & Northrup Comp Seattle
1953 Press Photo Peggy Van with Thermoplex Leeds & Northrup Comp Seattle

$19.99

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LEEDS & NORTHRUP Resistance Decacde 4776 Resistor Box
LEEDS & NORTHRUP Resistance Decacde 4776 Resistor Box

$40.00

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LEEDS & NORTHRUP SINGLE RANGE POTENTIOMETER INDICATOR IN WOODEN CASE W/KEY
LEEDS & NORTHRUP SINGLE RANGE POTENTIOMETER INDICATOR IN WOODEN CASE W/KEY

$64.99

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Leeds & Northrup Speedomax H Manual 077990 Issue
Leeds & Northrup Speedomax H Manual 077990 Issue

$16.85

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LEEDS & NORTHRUP 311285 RESISTOR NSNP
LEEDS & NORTHRUP 311285 RESISTOR NSNP

$10.00

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Vintage Leeds & Northrup L&N No. 5305 Test Instrument Resistance Bridge
Vintage Leeds & Northrup L&N No. 5305 Test Instrument Resistance Bridge

$79.97

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LEEDS & NORTHRUP 9513B744 NSNP
LEEDS & NORTHRUP 9513B744 NSNP

$140.00

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leeds & northrup Potentiometer
leeds & northrup Potentiometer

$115.00

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NEW Leeds & Northrup 074409 Analog Output Card Rev C
NEW Leeds & Northrup 074409 Analog Output Card Rev C

$70.20

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Leeds & Northrup 4866 Conductivity Bridge
Leeds & Northrup 4866 Conductivity Bridge

$79.95

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Vintage Leeds & Northrup Potentiometer
Vintage Leeds & Northrup Potentiometer

$40.00

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Leeds & Northrup Decade Resistance Box FREE SHIPPING!
Leeds & Northrup Decade Resistance Box FREE SHIPPING!

$49.99

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Vintage -Leeds & Northrup -Potentiometer & Galvanometer, In Wood Box - UN-Tested
Vintage -Leeds & Northrup -Potentiometer & Galvanometer, In Wood Box - UN-Tested

$49.99

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Leeds & Northrup 10218-1-2 *NEW* Modutrol Motor Actuator 120V 25W Honeywell
Leeds & Northrup 10218-1-2 *NEW* Modutrol Motor Actuator 120V 25W Honeywell

$269.75

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New Leeds & Northrup 074421 Memory Card Rev C
New Leeds & Northrup 074421 Memory Card Rev C

$81.00

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Vintage Leeds + Northrup Millivolt Potentiometer/Galvanometer Model 8690
Vintage Leeds + Northrup Millivolt Potentiometer/Galvanometer Model 8690

$26.89

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LEEDS & NORTHRUP JRCD-10242-YYY POTENTIOMETER NSNP
LEEDS & NORTHRUP JRCD-10242-YYY POTENTIOMETER NSNP

$48.00

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Antique Leeds & Northrup Single Range Potentiometer Indicator (PART)
Antique Leeds & Northrup Single Range Potentiometer Indicator (PART)

$30.00

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Vintage Leeds & Northrup 4737 ~ Guarded Wheatstone Bridge ~ Untested / AS-IS
Vintage Leeds & Northrup 4737 ~ Guarded Wheatstone Bridge ~ Untested / AS-IS

$269.79

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Leeds & Northrup Wheatstone Bridge Type S Test Set 5300 - Vintage and Gorgeous
Leeds & Northrup Wheatstone Bridge Type S Test Set 5300 - Vintage and Gorgeous

$179.49

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Leeds & Northrup RESISTANCE THERMOMETER BRIDGE MODEL 8064
Leeds & Northrup RESISTANCE THERMOMETER BRIDGE MODEL 8064

$30.00

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LEEDS&NORTHRUP 064305 REV. A1 UNMP
LEEDS&NORTHRUP 064305 REV. A1 UNMP

$242.00

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Leeds Northrup 2195 Reflecting Galvanometer Scale Lamp Stand
Leeds Northrup 2195 Reflecting Galvanometer Scale Lamp Stand

$149.99

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Leeds & Northrup Thomas Type 10 Ohm Resistor 1000 OHMS
Leeds & Northrup Thomas Type 10 Ohm Resistor 1000 OHMS

$116.97

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Vintage Leeds & Northrup Co Reflecting Galvanometer UNTESTED PARTS OR REPAIR
Vintage Leeds & Northrup Co Reflecting Galvanometer UNTESTED PARTS OR REPAIR

$39.99

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Leeds & Northrup 338418 Wiring Harness Mounted
Leeds & Northrup 338418 Wiring Harness Mounted

$56.77

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Leeds & Northrup 177209 Issue 2 - 9912 Run-Up Box Directions Manual Vintage
Leeds & Northrup 177209 Issue 2 - 9912 Run-Up Box Directions Manual Vintage

$17.95

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LEEDS+NORTHRUP 82-80-3002-03 NSMP
LEEDS+NORTHRUP 82-80-3002-03 NSMP

$55.00

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Vintage Leeds & Northrup 1540 Mutual Inductance Bridge: 50 Millihenrys
Vintage Leeds & Northrup 1540 Mutual Inductance Bridge: 50 Millihenrys

$45.00

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Leeds Northrup R-820-1-1 Amplifier Module
Leeds Northrup R-820-1-1 Amplifier Module

$174.57

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Leeds & Northrup 100 Ohms Standard Resistor
Leeds & Northrup 100 Ohms Standard Resistor

$89.99

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Leeds & Northrup 277650 Signal Loop Controller
Leeds & Northrup 277650 Signal Loop Controller

$66.01

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Leeds & Northrup Slidewire 012706 New Old Stock
Leeds & Northrup Slidewire 012706 New Old Stock

$41.36

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Leeds & Northrup Spur Gear 009114 , lot of 3
Leeds & Northrup Spur Gear 009114 , lot of 3

$25.00

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Leeds Northrup 4908-01-44-091-20-02 Conductivity Cell W/ Temp Comp
Leeds Northrup 4908-01-44-091-20-02 Conductivity Cell W/ Temp Comp

$48.65

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Leeds & Northrup 56859 Card Power Supply
Leeds & Northrup 56859 Card Power Supply

$129.99

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Leeds & Northrup Electrical Instruments for Measuring – Testing – Calibrating
Leeds & Northrup Electrical Instruments for Measuring – Testing – Calibrating

$70.00

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Leeds & Northrup Potentiometer Catalog No. 7651 Precision Voltage Measurement
Leeds & Northrup Potentiometer Catalog No. 7651 Precision Voltage Measurement

$75.00

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Vintage Leeds and Northrup Thermocouple Calibrator Potentiometer
Vintage Leeds and Northrup Thermocouple Calibrator Potentiometer

$80.00

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USED LEEDS & NORTHRUP 650044 RANGE CARD -5-5mv / 0-10mv
USED LEEDS & NORTHRUP 650044 RANGE CARD -5-5mv / 0-10mv

$55.00

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Leeds Northrup 8686 Millivolt Potentiometer
Leeds Northrup 8686 Millivolt Potentiometer

$89.90

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Leeds & Northrup 9834 DC Null Meter
Leeds & Northrup 9834 DC Null Meter

$99.55

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Leeds Northrup 074417 Pcb Circuit Board Rev E/f
Leeds Northrup 074417 Pcb Circuit Board Rev E/f

$173.10

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Leeds Northrup 8686 Millivolt Potentiometer
Leeds Northrup 8686 Millivolt Potentiometer

$52.15

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Leeds & Northrup Set of 5 Conductivity Check Coils *FREE SHIPPING*
Leeds & Northrup Set of 5 Conductivity Check Coils *FREE SHIPPING*

$39.99

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Leeds Northrup KCI-24A1 Ac Motor 2ph 120v-ac
Leeds Northrup KCI-24A1 Ac Motor 2ph 120v-ac

$32.65

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Antique L&N Leeds & Northrup Portable Potentiometer Indicator Wood Case Restored
Antique L&N Leeds & Northrup Portable Potentiometer Indicator Wood Case Restored

$129.00

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Vintage Leeds & Northrup GENRAD 4746 Decade Resistance Box Working
Vintage Leeds & Northrup GENRAD 4746 Decade Resistance Box Working

$55.00

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LEEDS & NORTHRUP 8067 TYPE G1 MUELLER TEMPERATURE BRIDGE
LEEDS & NORTHRUP 8067 TYPE G1 MUELLER TEMPERATURE BRIDGE

$175.00

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LEEDS & NORTHRUP CO CONDUCTIVITY BRIDGE Galvanonmeter 4866
LEEDS & NORTHRUP CO CONDUCTIVITY BRIDGE Galvanonmeter 4866

$129.99

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1942 LEEDS & NORTHRUP CO. Catalog MICROMAX SPEED RECORDERS
1942 LEEDS & NORTHRUP CO. Catalog MICROMAX SPEED RECORDERS

$14.95

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LEEDS NORTHRUP Circuit Board PCA Amplifier 055867 REV H
LEEDS NORTHRUP Circuit Board PCA Amplifier 055867 REV H

$99.00

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Leeds & Northrup 4035-B 1 OHM Standard Resistor 1694509
Leeds & Northrup 4035-B 1 OHM Standard Resistor 1694509

$115.99

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vintage leeds & northrup 5305 resistance test set galvanometer bridge [4*U-18]
vintage leeds & northrup 5305 resistance test set galvanometer bridge [4*U-18]

$75.00

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Vintage Galvanometer L&N Leeds & Northrup Type S Test Set No. 5300 in Case
Vintage Galvanometer L&N Leeds & Northrup Type S Test Set No. 5300 in Case

$85.00

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NICE Leeds & Northrup Potentiometer 8667 Wooden Box -Internal Resistance Tester
NICE Leeds & Northrup Potentiometer 8667 Wooden Box -Internal Resistance Tester

$40.00

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Leeds & Northrup 445848 Circuit Board
Leeds & Northrup 445848 Circuit Board

$125.44

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LEEDS & NORTHRUP 055919 HOUSING NSNP
LEEDS & NORTHRUP 055919 HOUSING NSNP

$24.00

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NEW - Leeds & Northrup PC Control Board 074417
NEW - Leeds & Northrup PC Control Board 074417

$299.00

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NEW Honeywell Leeds Northrup 046276-E3 Module Analyzer Control Card, 046276E3
NEW Honeywell Leeds Northrup 046276-E3 Module Analyzer Control Card, 046276E3

$410.00

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