for that purpose place the reelupon a snugly fitting wooden mandrel, withsome sort of a dog to keep it from slipping. FOR EVERYBODY. Then, having pushed a short length, say a foot,of the wire with which you are going to windyour primary, through one of the holes in theend of the reel, start your… … FIGURE 2. the finishing end out through the other hole inthe end of the reel. Give the coil several coats of thin shellac,allowing it to dry thoroughly between eachapplication, and then insulate it by winding onfour layers of cartridge paper smoothly andglueing them down as directed in making…
X-rays · Fluorescence
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