Electrical and scientific instruments and apparatus : november 20th, 1899 (1899)
Elmer G. Willyoung & Co · New York : E.G. Willyoung · leaf 164
30 00 W219. 150 30 00 W225. SlaiKlarcl Electric Oauge $6 00 ...... For making comparative tests of battery vv ol^ E. M. F. and current. Size of an ordinary ^ ^»- watch and finished in nickel. Resistance ^ * about 10 ohms. W226. Standard Pocket M^fk^^^^^^^^^^^^^ Voltmeter $7 00 Same as W225 but… … 160 STUDENTS ELECTRICAL APPARATUS FOR COLLEOE AXD HIOH SCHOOL LABORATORIES. Unless otherwise stated the general specifleations forapparatus deseritoed on pages 160 to 165 are:— Wood-work—Cherry, with shellac finish. Metal-w^ork—Lacquered brass or copper with all castings roughand blacked. All key…
Electric apparatus and appliances · Equipment and supplies
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