Tag: galvanometer

Rare Antique Laboratory University Apparatus Galvanometer Wood Early Steampunk

Posted by admin On October 2, 2023

RARE ANTIQUE LABORATORY UNIVERSITY APPARATUS GALVANOMETER WOOD EARLY STEAMPUNK. Galvanometer by University Apparatus Co. Fully marked on the face: UNIVERSITY APPARATUS CO. BERKELEY CALI Has different measurement frequencies around the edge with perforation Mirrored under the insert tin /paper? Insert is not laying flat Overall measures approximately 9″ tall by 8″ wide Early walnut base with 5, 10, 15 & brass pins Rope like wire? Wrapped around the edge Has a sharp pin in the center compass like Missing the pointer to measure electric current A nice addition to any collection! Might work I do not have the knowledge to test it. Excellent Condition 5/5 (no damage-no stain-barely used). Very Good Condition 4/5 (no damage-no stain-used more frequently). Good Condition 3/5 (may have damage or stains – used a lot). Poor Condition 2/5 (Has Damage – Very worn). Please Message me when you want your order combined. Always listing Harley Davidson and other Vintage clothes. Please look at all photos and ask any questions. Please look at our 100% feedback. Items in pictures are the items you will receive. Please ask any questions. All items are described as good as possible. Just message and I will adjust invoice Thank you. Item must be in original condition. If item is new must have all tags that were on item. New items that are opened will not be accepted because of size.

Rare Negretti & Zambra Recording Galvanometer. Early 20th Century

Posted by admin On November 18, 2021

For sale is a fine and large and recording galvanometer by the noted maker Negretti & Zambra early 20. Comprising a galvanometer mechanism, recording drum and separate clockwork movement, all mounted on a heavy black marble slab. The unit is housed in a glazed mahogany case with lacquered brass fittings. The unit was used in combination with a separate sensor (not present) to record temperature (a pyrometer) and the brass top plate over the clockwork movement housing is inscribed Electrical Recording Pyrometer No. 1037A, 0 to 75 degrees F. Approximate dimensions of the case are 13.5 by 14 by 11.5 inches (34 by 36 by 29 cm) and weight is substantial at around 17 kilos. Overall condition is very good, with original lacquer to the brass parts and the clockwork mechanism in working order. However, please note that the galvanometer suspension wire is detached, wires connecting the movement to the outer mahogany case are disconnected and the wooden sides of the case with some shrinkage cracks (please refer to photos). Nevertheless, it is a handsome instrument that displays well. He comments in the catalogue description The quality of this instrument is outstanding, I love it. I have found such pieces exceedingly difficult to find. Please note that the photos form part of the description. Thank you for looking. The item “Rare Negretti & Zambra Recording Galvanometer. Early 20th Century” is in sale since Tuesday, November 2, 2021. This item is in the category “Collectables\Scientific Collectables\Scientific Instruments\Other Scientific Instruments”. The seller is “amperesand” and is located in London. This item can’t be shipped, the buyer must pick up the item.

Sub-Type: Recording Galvanometer
Country/Region of Manufacture: United Kingdom
Type: Scientific Instruments

A Rare Negretti & Zambra Recording Galvanometer. Early 20th Century

Posted by admin On January 12, 2021

For sale is a fine and large and recording galvanometer by the noted maker Negretti & Zambra early 20. Comprising a galvanometer mechanism, recording drum and separate clockwork movement, all mounted on a heavy black marble slab. The unit is housed in a glazed mahogany case with lacquered brass fittings. The unit was used in combination with a separate sensor (not present) to record temperature (a pyrometer) and the brass top plate over the clockwork movement housing is inscribed Electrical Recording Pyrometer No. 1037A, 0 to 75 degrees F. Approximate dimensions of the case are 13.5 by 14 by 11.5 inches (34 by 36 by 29 cm) and weight is around 17 kilos. Overall condition is very good, with original lacquer to the brass parts and the clockwork mechanism in working order. However, please note that the galvanometer suspension wire is detached, wires connecting the movement to the outer mahogany case are disconnected and the wooden sides of the case with some shrinkage cracks (please refer to photos). Nevertheless, it is a handsome instrument that displays well. He comments in the catalogue description The quality of this instrument is outstanding, I love it. I have found such pieces exceedingly difficult to find. Please note that the photos form part of the description. Thank you for looking. The item “A Rare Negretti & Zambra Recording Galvanometer. Early 20th Century” is in sale since Monday, January 11, 2021. This item is in the category “Antiques\Science/Medicine\Scientific Instruments”. The seller is “amperesand” and is located in London. This item can’t be shipped, the buyer must pick up the item.

Early Rare Antique