100-Radio-Hookups-EICO-1924

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100 RADIO HOOK-UPSHOW TO READ A HOOK-UPTHE intelligent reading of a hook-up appears ratherdifficult at first glance. This naturally is due tothe maze of wiggly lines that mean nothing tothe person not acquainted with radio symbols.The use of symbols is the most rapid and practical methiadTO ENDOF COILAERIAL -dAUDIONPHONE§Vzb09ONE SLIDETUNING COILGRID LEAK exGRID COND.CONDÉ SERGROUNDBATT.Figure Bof illustrating a complete receiving set and its connections.This method will never give way to the longdrawn out means of showing each instrument in perspectiveform. It is necessary for the beginner though, tohave perspective illustrations of each piece of apparatusso that he can compare it to its line symbol. For thisreason the author has included a list of the componentsthat all or in part make up a receiving set. A numberof other symbols are included for general information.These are seen to be understandable drawings of the instrumentswith the correct symbol alongside each one.Since the symbols are more or less descriptive of the instrumentit designates, it should not take the reader long10
100 RADIO HOOK-UPSbefore he can readily determine the meaning of eachsymbol. Let us take or an example the hook-up of Fig. 1.It composes in the drawing of an aerial, a ground, a oneslide tuning coil, a crystal detector, a fixed condenserand head phones. If any of these symbols are foreign intheir appearance, their nature can easily be found by.00 MFD.CRYSTAL DET. .001MFD.TO GROUND.001 MFD..001 MFD.Figure Creferring to the list here given. The straight lines issuingfrom each side of the symbols are the connectingwires, which in practice, lead from the binding post ofone instrument to the binding post of another. In some11
Page 1 and 2: 1THE EXPERIMENTERS LIBRARY, No. ilo
Page 3 and 4: THE EXPERIMENTER'S LIBRARY, No.100
Page 5 and 6: FOREWORDBEFORE entering upon the st
Page 7 and 8: 100 RADIO HOOK-UPSThe detectors to
Page 9 and 10: 1100 RADIO HOOK-UPSSYMBOLS USED IN
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Page 39 and 40: 140 RADIO HOOK-UPSREFLEX CIRCUITSFi
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Page 47 and 48: 100 RADIO HOOK-UPSFig. 88. Another
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100-Radio-Hookups-EICO-1924

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