vintage METER from Elli Buk collection: LORD KELVIN\'S MULTICELLULAR VOLT METER
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
vintage METER from Elli Buk collection: LORD KELVIN\'S MULTICELLULAR VOLT METER:
$79.99
VIEW MY OTHER ITEMS ON
Welcome to another Great item from SYOTTOYS and thanks forstopping by, after you have looked at this one, why not sit back, grab your favorite drinkand spend some time checking out all the wonderful things I have to offer. just click above.
DESCRIPTION OF ITEMHEY THIS IS From the collection of ELLI BUK, a great collector/dealer/curator, go ahead and give him a google. \"Your legendary shop and window on Spring Street inspired all those who rang your bell in search of the magical, phenomenal and transcendent, while you opened doors, minds and hearts to the mysteries of the cosmos held in your this item is a vintage untested and uncleaned Meter - LORD KELVIN\'S multicellular volt meter no. 19948, from Kelvin, Bottomley & Bairo ltd. late Kelvin & JAS White ltd out of Glasgo & London, and imported by JAMES G offerDLE out of Philadelphia. this appears to be mostly Bakelite, with a bit of damage around the circular unit that comes out at the front (see my 4th photo).
VOLTMETER, an instrument for measuring difference of electric potential in terms of the unit called a volt. The volt (so called after A. Volta) is defined to be difference of potential which acting between the terminals of a resistance of one ohm sends through it a continuous current of one ampere. A voltmeter is therefore one form of electrometer, but the term is generally employed to describe the instrument which indicates on a scale, not merely in arbitrary units but directly in volts, the potential difference of its terminals. Voltmeters may be divided into two classes, (a) electrostatic, (b) electrokinetic.
Electrostatic voltmeters are based on the principle that when two conductors are at different potentials they attract one another with a force which varies as the square of the potential difference (P. D.) between them. This mechanical stress may be made the measure of the P. D. between them, if one of the conductors is fixed while the other is movable, this last being subject to a constraint due to a spring or to gravity, means being also provided for measuring either the displacement of the movable conductor against the constraint or the force required to hold it in a fixed position relatively to the fixed conductor. One large class of electrostatic voltmeters consists of a fixed metal plate or plates and a movable plate or plates, the two sets of plates forming a condenser (see Leyden Jar). The movable system is suspended or pivoted, and when a P. D. is created between the fixed and movable plates, the latter are drawn into a new position which is resisted by the torque of a wire or by the force due to a weight. Utilizing this principle many inventors have devised forms of electrostatic voltmeter. One of the best known of these is Lord Kelvin\'s multicellular voltmeter.
the scale behind the item is in inches.
I ship well and fast, please check my response and join the happy SHOWN, USE S ZOOM IN FEATURE TO GET A GREAT LOOK AT THE ITEM UP CLOSE,
and email me any questions, please.
VIEW MY OTHER ITEMS ON AND CONDITIONS----117-----
vintage METER from Elli Buk collection: LORD KELVIN\'S MULTICELLULAR VOLT METER:
$79.99