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A. B. C. of Electrical Experiments: A Practical Elementary Book Especially ...
William Joseph Clarke
No preview available - 2015
18 copper wire annunciator apparatus armature ball binding posts binding-posts blotting-paper bottle brass strip carbon cylinder battery carefully cents circle coherer connect cork cost diaphragm support drill a hole dry battery dry hardwood dynamo electro magnet electrophorus experiments ferrotype Geissler tube glass half inches long head iron wood head wood screws inch in diameter inch thick inches wide induction coil inside instruments iron wood screws Leyden jar magnet wire motor needle nice nice and smooth one-half inch one-quarter paper pass piece of iron piece of wood pipe plaster of Paris plate platinum press the key push relay ring round-head iron wood secondary shown in Fig side solder sounder spark spool spring static electricity steel Take a piece telegraph telegraph key telephone tery three inches three-eighths tight tightly tinfoil touch transmitter tube washer wind X-ray zinc