. Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery . Fig. 29. 02 and round off the corners with a pair ofshears. There must be no sharp corners,projections, or angles toinduce leakage. Laythe glass plate on asheet of paper, and markits outline thereon witha pencil; then remove itand substitute a sheet of ^^ ^° the tinfoil, and mark that. This will en-able you to centre the foil. Give one sideof the glass plate another coat of varni
. Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery . Fig. 29. 02 and round off the corners with a pair ofshears. There must be no sharp corners,projections, or angles toinduce leakage. Laythe glass plate on asheet of paper, and markits outline thereon witha pencil; then remove itand substitute a sheet of ^^ ^° the tinfoil, and mark that. This will en-able you to centre the foil. Give one sideof the glass plate another coat of varnish,and so lay it on the paper that its outlinecoincides with the pencil outline. Whenthe varnish has partly dried take a sheetof the trimmed foil, and by observing thepencilled marks you can lay it on the var-nished plate exactly in the centre. Laydown the top edge first along this line, andcarefully deposit the remainder of the foilin place. Next, with a flat brush full ofvarnish go over the plate, pressing out anyair bubbles, and ensuring both a flat and awell-varnished surface. When this is dry, Condensers» 103 turn over the plate and repeat the opera-tion on the other side. If desired, a metal hemisphere of at least
Size: 1840px × 1358px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidinductioncoi, bookyear1901
