+ Post new Ad
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 0
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 1
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 2
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 3
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 4
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 5
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 6
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 7
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 8
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 9
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 10
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 0
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 1
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 2
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 3
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 4
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 5
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 6
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 7
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 8
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 9
Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science, US $42.50 – Picture 10

Antique Leeds & Northrup Double Throw Knife Switch Electricity Bakelite Science

US $42.50

  • Granville, Ohio, United States
  • Mar 1st
Open on mobile:
QR code
Old Leeds & Northrup Double Throw Knife Switch Electricity Science Bakelite Up for auction, here's an antique Leeds & Northrup double throw, 4 pole, series/parallel knife-style switch for electricity/magnetism apparatus to measure resistance in early physics research. Circa mid-late 1920s, made of bakelite with base-mount holes, brass throw & copper connectors. Marked with L&N logo within bakelite molded frame, a couple chips off here and there to the bakelite and some glue remnants from a laboratory label (see photos). Measures about 5" wide x 2.5" deep x 3.5" tall. Untested, sold as is, as found. Thanks for looking & good luck bidding!
“See item description & photos”
Brand Leeds & Northrup
Country/Region of Manufacture United States

Directions

Similar products from Other Wiring Accessories and Switches

Honeywell Micro Switch BZ-2RQ66 LIMIT SWITCH BZ2RQ66

Honeywell Micro Switch BZ-2RQ66 LIMIT SWITCH BZ2RQ66

  • Owatonna, Minnesota, United States
  • Mar 1st
NEW TELEMECANIQUE XCK-M106 ZCK-M1 C0549 LIMIT 240V-AC 3A AMP SWITCH D409774

NEW TELEMECANIQUE XCK-M106 ZCK-M1 C0549 LIMIT 240V-AC 3A AMP SWITCH D409774

  • Delta, Ohio, United States
  • Mar 1st
ALLEN BRADLEY 800T-J2KR7 ATTACHED PART 800T-XA SELECTOR SWITCH

ALLEN BRADLEY 800T-J2KR7 ATTACHED PART 800T-XA SELECTOR SWITCH

  • Altamonte Springs, Florida, United States
  • Mar 1st
1 NIB Lithonia ISD-1200-ADEZ-277-WH-M10 FLOURESCENT DIMMER ISD1200ADEZ277WHM10

1 NIB Lithonia ISD-1200-ADEZ-277-WH-M10 FLOURESCENT DIMMER ISD1200ADEZ277WHM10

  • East Lansing, Michigan, United States
  • Mar 1st
8-position DIP Switch #275-1301 By RadioShack

8-position DIP Switch #275-1301 By RadioShack

  • Modesto, California, United States
  • Mar 1st
NEW SCHMERSAL Z1R 236-11ZM20 POSITION SWITCH D409885

NEW SCHMERSAL Z1R 236-11ZM20 POSITION SWITCH D409885

  • Delta, Ohio, United States
  • Mar 1st
Milbank Company Metering Transformer Cabinet

Milbank Company Metering Transformer Cabinet

  • Warrensburg, Illinois, United States
  • Mar 1st
NEW HONEYWELL MC2711 MICRO SWITCH ACTUATOR SWITCH D409903

NEW HONEYWELL MC2711 MICRO SWITCH ACTUATOR SWITCH D409903

  • Delta, Ohio, United States
  • Mar 1st
HONEYWELL SP470A 1000 2 2 TWO POSITION PNEUMATIC SELECTOR 1 2 SWITCH B265896

HONEYWELL SP470A 1000 2 2 TWO POSITION PNEUMATIC SELECTOR 1 2 SWITCH B265896

  • Buffalo, New York, United States
  • Mar 1st
NEW ALLEN BRADLEY 800F-MN3RX22 LED CONTACT MODULE WITH LATCH SER A 24V D363203

NEW ALLEN BRADLEY 800F-MN3RX22 LED CONTACT MODULE WITH LATCH SER A 24V D363203

  • Delta, Ohio, United States
  • Mar 1st
Encelium SWM-1200 Multi-Technology Wall/Corner Occupancy Sensor

Encelium SWM-1200 Multi-Technology Wall/Corner Occupancy Sensor

  • Winston-Salem, North Carolina, United States
  • Feb 28th
SQUARE D 9002AW13 FOOT SWITCH FACTORY SEALED BOX

SQUARE D 9002AW13 FOOT SWITCH FACTORY SEALED BOX

  • Caulfield, Missouri, United States
  • Feb 28th
Sensio SA40516 Infrared On/Off Switch

Sensio SA40516 Infrared On/Off Switch

  • Winston-Salem, North Carolina, United States
  • Feb 28th
NEW DESTACO DE-STA-CO 8215-SO-27 SENSOR

NEW DESTACO DE-STA-CO 8215-SO-27 SENSOR

  • Cedarburg, Wisconsin, United States
  • Feb 27th
Blue Sea 8260 6 Position Contura Switch Mounting Panels 8260

Blue Sea 8260 6 Position Contura Switch Mounting Panels 8260

  • Island Heights, New Jersey, United States
  • Feb 27th
C-H 3PDT TOGGLE SWITCH (ON-ON), 15 AMP AC, 125 VAC; 10 AMP 250 VAC, NEW

C-H 3PDT TOGGLE SWITCH (ON-ON), 15 AMP AC, 125 VAC; 10 AMP 250 VAC, NEW

  • McMinnville, Oregon, United States
  • Feb 27th
J-B-T/C-H DPDT C.O.TOGGLE SWITCH (ON-OFF-ON), 20 AMP, 125V; 10 AMP, 250 V, USED

J-B-T/C-H DPDT C.O.TOGGLE SWITCH (ON-OFF-ON), 20 AMP, 125V; 10 AMP, 250 V, USED

  • McMinnville, Oregon, United States
  • Feb 27th
CARLING SPST HEAVY DUTY TOGGLE SWITCH (ON-OFF), 16 AMP, 125V; 8 AMP, 250 V, NEW

CARLING SPST HEAVY DUTY TOGGLE SWITCH (ON-OFF), 16 AMP, 125V; 8 AMP, 250 V, NEW

  • McMinnville, Oregon, United States
  • Feb 27th
NEW C&K FALLAS 21F542 16 POSITION SELECTOR SWITCH D313150

NEW C&K FALLAS 21F542 16 POSITION SELECTOR SWITCH D313150

  • Delta, Ohio, United States
  • Feb 27th
NEW C&K FALLAS 21F542 16 POSITION SELECTOR SWITCH D313170

NEW C&K FALLAS 21F542 16 POSITION SELECTOR SWITCH D313170

  • Delta, Ohio, United States
  • Feb 27th

People who viewed this item also vieved

lot 4 Micro BZ-2RW82-A2 lug STANDARD GRIGSBY rotary knob MS35058-21 J-B-T Toggle

lot 4 Micro BZ-2RW82-A2 lug STANDARD GRIGSBY rotary knob MS35058-21 J-B-T Toggle

  • Nellysford, Virginia, United States
  • Jan 29th
Mechanical Turret Head or Limit Switch Class 9007 or C62B2

Mechanical Turret Head or Limit Switch Class 9007 or C62B2

  • Fort Myers, Florida, United States
  • Jan 29th
Topworx Leverless Limit Switch

Topworx Leverless Limit Switch

  • Carlisle, Kentucky, United States
  • Jan 29th
NEW HONEYWELL C437H 1035 GAS A/G/LP PRESSURE SWITCH D441114

NEW HONEYWELL C437H 1035 GAS A/G/LP PRESSURE SWITCH D441114

  • Delta, Ohio, United States
  • Jan 29th
NEW UE UNITED ELECTRIC H402-S126B 480V-AC 15A PRESSURE SWITCH D441108

NEW UE UNITED ELECTRIC H402-S126B 480V-AC 15A PRESSURE SWITCH D441108

  • Delta, Ohio, United States
  • Jan 29th
Square D Pressure Switch Class 9012?

Square D Pressure Switch Class 9012?

  • Nutley, New Jersey, United States
  • Jan 29th
Cutler-Hammer Panel Light - 110VAC - White Lens - Tests OK

Cutler-Hammer Panel Light - 110VAC - White Lens - Tests OK

  • Clear Lake, Minnesota, United States
  • Jan 29th
ALLEN BRADLEY 800T-2TG ENCLOSURE GREEN 800T-A RED 800T-B T PUSHBUTTON B440119

ALLEN BRADLEY 800T-2TG ENCLOSURE GREEN 800T-A RED 800T-B T PUSHBUTTON B440119

  • Buffalo, New York, United States
  • Jan 29th
Cutler-Hammer Panel Light - 110VAC - Green Lens - Tests OK

Cutler-Hammer Panel Light - 110VAC - Green Lens - Tests OK

  • Clear Lake, Minnesota, United States
  • Jan 29th
Siemens D11CFU1 Rotary Handle (NO SHAFT)

Siemens D11CFU1 Rotary Handle (NO SHAFT)

  • Arlington, Texas, United States
  • Jan 29th
Lot of 4 GRAYHILL Miniature Rotary Switches 5 & 10 Position 24001-10N, 24001-05N

Lot of 4 GRAYHILL Miniature Rotary Switches 5 & 10 Position 24001-10N, 24001-05N

  • San Bernardino, California, United States
  • Jan 29th
#K273 Lot of 17 On/Off/On Switch Toggle 21 Amp 14VDC

#K273 Lot of 17 On/Off/On Switch Toggle 21 Amp 14VDC

  • San Diego, California, United States
  • Jan 29th
Mil EATON Toggle Switch SPDT On Off Mom.On 8809K16 MS35058-31

Mil EATON Toggle Switch SPDT On Off Mom.On 8809K16 MS35058-31

  • Pony, Montana, United States
  • Jan 29th
30003 Bryant Switch

30003 Bryant Switch

  • San Jose, California, United States
  • Jan 29th
New OHMITE 111-9 Rotary Tap Switch 150V-AC 10Amp

New OHMITE 111-9 Rotary Tap Switch 150V-AC 10Amp

  • israel, Israel
  • Feb 12th
RadioShack Illuminated Rocker Switch SPST

RadioShack Illuminated Rocker Switch SPST

  • Tracy, California, United States
  • Feb 21st
NEW JR Products 97005 12V Water Pump

NEW JR Products 97005 12V Water Pump

  • United States
  • Feb 21st
Crestron CLW-DIMEX-P-IVR-S (Ivory) Dimmer Light Switch

Crestron CLW-DIMEX-P-IVR-S (Ivory) Dimmer Light Switch

  • Scottsdale, Arizona, United States
  • Feb 21st

By clicking "Accept All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts.

Accept All Cookies