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need to confirme this Changes composents Gary's Pulse-2" Induction Metal Detector

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  • need to confirme this Changes composents Gary's Pulse-2" Induction Metal Detector

    hi everybody

    i need to confirme this changes
    Q3:2N3819 or 2SK30A BY BF245

    Q4:2N4125 or 2N3906 BY 2907A

    IC2:LT1054-CN8 -(8 pin dip) "Substitute a ICL7660ACPA" BY 7660SCPA

    VR1 25K BY VR 22K

    IC1 REG-1117A-adj (Surface mount "SOT-223" Package. Mounts on copper side.)
    OR a MC33269ST-ADJ ("SOT-223 Package" Adjustable version.) I DDN4T FOUND IT

    and can i use 47 pf in place of 50pf (c19and c32) ( dn't found 50pf)


    PLZZ FRIEND NEED HELP TO COMPLET IT

    http://www3.telus.net/chemelec/Proje...-2/Metal-2.htm

    MY BEST REGERDS

  • #2
    ABOUT IC1 I FOUND THIS

    GS1117AX

    AND
    LD1117


    can i use one of them

    my regards

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    • #3
      vr1 should be ok
      all you are doing is adjusting the output to zero

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