MidCentury Retro Style Modern Architectural Vintage Furniture From Metroretro and MCM Consignment

Metroretrofurniture

Bauhaus furniture, Bauhaus designers, Bauhaus style, bauhouse

New Furniture Seating Tables Desks Case Goods Miscellaneous Spring 2013 Recent Arrivals ! Textiles Lighting Art Deco Tent Clearance Sale Marble Outdoor Bedroom Art Industrial Traditional Scandinavian Metro Retro eBay Store
Frequently Asked Questions Shipping Options Articles E-Books Quantity Discounts Metro Retro in the News Search

HOME : Miscellaneous : Miscellaneous : Leeds & Northrup Type K Potentiometer

Leeds & Northrup Type K Potentiometer (MR6649)

Price:	$199

Questions about this item?

Leeds & Northrup Co. Type K PotentiometerPhiladelphia 130117 The slide-wire potentiometer was invented by Johann Christian Poggendorff (1796-1877) in 1841. In addition to his work with electricity, he was the editor of the Annalen de Physik und Chemie from 1824 to 1876, and his biographical volumes of scientists have become standards and are still being published. The potentiometer is a Leeds and Northrup Type K model, which was a standard piece of apparatus in most college and university electrical measurements laboratories for the first half of the 20th century. By the time1950s the model designation was the Type K-3, but the basic design remained the same. This particular instrument was used at Denison University. At the heart of the potentiometer is a long slide wire. In the Type K potentiometer this was in the form of a ten-turn coil, a design due to Kohlrausch The potentiometer was used with an external standard cell and an external galvanometer. Using a potentiometer to make voltage measurements was somewhat slow, but you could read to 0.00001 Volt.

9.75" Width x 16.75" Depth x 9.25" Height

Very Good Vintage~We don`t know if it works~

We recommend shipping via DHL
QUOTED FOR U.S. ONLY