Vintage Leeds & Northrup Co. Scientific Testing

5.75 x 5.75 x 5.5 inches - some damage to base

12.75 x 9 x 7.75 inches when closed

18 x 11 x 9 inches when covered

13.25 x 7.5 x 7.25 inches

24 x 7.5 x 5.25 inches when covered - some wear to case; untested

9 x 7.5 x 6 inches when closed

Vintage Leeds & Northrup Co Light beam Galvanometer Model 2420 in wooden case

8 x 5.5 x 9.75 inches

Vintage Leeds & Northrup Co Potentiometer, 600 OHM Attenuation Box General Radio Co

19.5 x 8.25 x 3.75 inches; untested

Mfg. by Wheelco Instruments Co. Dimensions: 8.00 " W x 11.00 " H x 5.00 "D; 

Scientific Testing Equipment (6), Mid-Century wood case w/a Weston Illumination meter Model 603, Leeds & Northrup potentiometer, GE ac voltmeter, Industrial Instruments conductivity bridge, Hotpoint o

Two portable volt meter type pc, a Westinghouse (East Pittsburg,Pa) and a Leeds & Northrup co. Philadelphia.

A Wheatstone Bridge by Leeds & Northrup Co., Philadelphia, 20th Century, Together with a slide wire resistor, 20th Century. H: 2 1/2 W: 23 3/4 D: 6 1/4 in.

Largest is 7.75 x 4.25 x 6 inches

5.5 x 3.5 x 7.5 inches

A D'Arsonval Galvanometer by Leeds & Northrup Co., Philadelphia, Early 20th Century. H: 9 D: 4 3/4 ins. Proceeds to benefit the Case Western Reserve University Dayton Miller Scholarship Fund.

11 x 9.25 x 5.5 inches when closed

2 LEEDS & NORTHRUP CO. REFLECTING GALVANOMETERS Two Leeds & Northrup Co. reflecting galvanometers. Serial numbers 1067355 and 207797. Weight: 9.25" Shipping / Pickup: Buyer Pick Up, 3rd Party

8.25 x 9.75 x 3.5 inches

Leeds & Northrup Co. Three Decade Resistors

4.75 x 8.5 x 11.75 inches when closed. Barber-Colman Company Industrial Instruments Div. Model No 330-P.

9 x 7.75 x 6 inches when closed

A Wheatstone Bridge by Leeds & Northrup Co., Philadelphia, 20th Century, and a Slide Wire Resistor, 20th Century. H: 2 1/2 W: 23 3/4 D: 6 1/4 in. Proceeds to benefit the Case Western Reserve Universit