Leeds & Northrup Co. Tester

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.

5.75 x 5.75 x 5.5 inches - some damage to base

12.75 x 9 x 7.75 inches when closed

9 x 7.5 x 6 inches when closed

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.

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

Leeds & Northrup Co. Three Decade Resistors

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

18 x 11 x 9 inches when covered

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

19.5 x 8.25 x 3.75 inches; untested

13.25 x 7.5 x 7.25 inches

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

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

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

Decade resistor box by Leeds & Northrup Co. Philadelphia. Patent No. 191685. Dimensions: 14.00 " W x 5.00 " H x 1.25 "D; 

An Electrical Resistor Decade Box by Leeds & Northrup Co., Philadelphia, 20th Century. Numbered 6203. Having copper fittings. H: 5 1/8 W: 8 1/4 D: 3 3/4 ins. Proceeds to benefit the Case Western Reser

Millivolt Potentiometer

9 x 7.75 x 6 inches when closed

8 x 5.5 x 9.75 inches

1942 LEEDS NORTHRUP PH INDICATOR MICROMAX - ; Condition - Untested; general wear due to age and use; some rust & paint loss ; Measures: 11.5"H x 17"W x 17"D

Vintage Leeds & Northrup Temperature Potentiometer

Leeds Northrup temperature potentiometer No 8693