An instrument is described which detects small pieces of qtrampq iron in an aluminum alloy.DESCRIPTION OF INSTRUMENT The Tramp-Metal Detector, with the exception of the coils, is housed in a cabinet 14a3/4 x 22 x 14 inches. Both of the coils are ... Figure 5 shows a schematic diagram of the circuit. A 6SJ7 is employed in aanbsp;...
|Title||:||A Tramp-metal Detector|
|Author||:||M. H. Goosey|