100-Radio-Hookups-EICO-1924

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100 RADIO HOOK-UPSW00/ vernier. ¡me WmFig. 20 Ffg. 21Fig. 20. The tuned plate method of securing regeneration isshown. Sharp tuning is accomplished by means of the verniervariable condenser.Fig. 21. An excellent regenerative circuit employ two Spider -web coils marked L-1 & L-2 and a vario -coupler indicated byP. & S. This circuit is capable of very Sae adjustmentf inegohm, .aoozsSmegohni.00025-h;iilzzj v é'Fig. 22Fig. 23Fig. 22. A standard three circuit regenerative receiver employinga vario -coupler and two variometers for tuning and regeneration.This is one of the most sensitive and selective setain common use today.Fig. 23. This is an improvement over the circuit shown inFig. 22 since the phones and "B" batteries are taken out of the mainoscillating circuit. This arrangement, however, makes the setmuch more critical in adjustment.18
100 RADIO 11O0H-UP8"T'Fig. 26Fig. 24. This is the circuit of the Paragon RA -10. A "leadingcoil" is inserted in both the primary and secondary circuits sothat higher wave -lengths can be reached. These coils are cut inand out of the circuit by switch "SW".Fig. 25. The hook-up of the Aerolia Sr. Coils A, B, C and Dare all wound on the same tube while coils E and F are woundon smaller tubes and rotate within the others. When the aerialswitch is on contact "S" shorter waves can be received than whenon contact "L".zrfv.Flu. 24Fig. 26. A very good regenerative receiver with but twocontrols, i. e., the variometer and the variable condenser. Coils"P" and "8" are wound on the same tube with about 1/3 in. betweenthem. The variometer should be placed at the end of thistube. Coil "P" should be "stagger" wound.Fig. 27. Another circuit with but two controls. This is anadaptation of the Colpitta oscillator circuit and has proven to be avery sensitive regenerative receiver.19
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 13 and 14: 100 RADIO HOOK-UPSbefore he can rea
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Page 35 and 36: 100 RADIO HOOK-UPSFig. 61Fig. 61. A
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Page 51 and 52: "The Radio Constructor Series"The C

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