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  • fisher 2 box question

    i bought an old fisher fw-5 .it didn't come with the handle .does anyone know the dimensions ? and is there a tuning screw on the handle like the newer models ?
    thanks in advance

  • #2
    Originally posted by taliesin View Post
    i bought an old fisher fw-5 .it didn't come with the handle .does anyone know the dimensions ? and is there a tuning screw on the handle like the newer models ?
    thanks in advance
    All old models Gemini and TW have tuning screw.
    http://www.fisherlab.com/industrial/...le-locator.htm
    Length on handle is 49 1/2 inches.
    You can use manual for Gemini III
    http://www.fisherlab.com/hobby/manua...ual-reader.pdf

    Fisher Labs TW-5 on-handle demo for locating underground pipes and cables
    http://www.youtube.com/watch?v=UqWYR8DwxP0

    Comment


    • #3
      Originally posted by mikebg View Post
      All old models Gemini and TW have tuning screw.
      http://www.fisherlab.com/industrial/...le-locator.htm
      Length on handle is 49 1/2 inches.
      You can use manual for Gemini III
      http://www.fisherlab.com/hobby/manua...ual-reader.pdf

      Fisher Labs TW-5 on-handle demo for locating underground pipes and cables
      http://www.youtube.com/watch?v=UqWYR8DwxP0

      thanks mike

      Comment


      • #4
        i forgot to ask mike

        Originally posted by taliesin View Post
        thanks mike
        how does the tuning screw work .will any screw work?

        Comment


        • #5
          Originally posted by taliesin View Post
          how does the tuning screw work .will any screw work?
          The screw operates as knob for induction balance.
          Attached Files

          Comment


          • #6
            thanks mike

            is the black rim indicated plastic on the new ones ?
            Attached Files

            Comment


            • #7
              Originally posted by taliesin View Post
              is the black rim indicated plastic on the new ones ?
              Taliesin, the rim operates as coil. In your model, the coil has only one turn, connected to circuit by a matching transformer.
              Attached Files

              Comment


              • #8
                thanks mike

                very good of you to help

                Comment


                • #9
                  Originally posted by taliesin View Post
                  very good of you to help
                  and to search WEB instead you
                  Here is a circuit of RX box:
                  Attached Files

                  Comment


                  • #10
                    Hi Mikebg.
                    Fisher Gemini III has not one turn loop as the Gemini II. It has many turns.
                    I believe that TW is the same with Gemini III.

                    Regards
                    Attached Files

                    Comment


                    • #11
                      Originally posted by Geo View Post
                      Hi Mikebg.
                      Fisher Gemini III has not one turn loop as the Gemini II. It has many turns.
                      I believe that TW is the same with Gemini III.

                      Regards
                      Taliesin will tell us. If the rim of TW is made of aluminium, then the loop has only one turn.

                      Geo, Do you have circuit diagrams of Gemini III?

                      Comment


                      • #12
                        Originally posted by mikebg View Post
                        Taliesin will tell us. If the rim of TW is made of aluminium, then the loop has only one turn.

                        Geo, Do you have circuit diagrams of Gemini III?
                        yes the rim is aluminium

                        Comment


                        • #13
                          Originally posted by mikebg View Post
                          Taliesin will tell us. If the rim of TW is made of aluminium, then the loop has only one turn.

                          Geo, Do you have circuit diagrams of Gemini III?
                          Sorry... but No.
                          I tried to reverse the pcb but i let it at half.... maybe i am a little lazy

                          Regards

                          Comment


                          • #14
                            3 piece handle $145

                            Originally posted by taliesin View Post
                            i bought an old fisher fw-5 .it didn't come with the handle .does anyone know the dimensions ? and is there a tuning screw on the handle like the newer models ?
                            thanks in advance
                            what have the people over at fisher been smoking.i just got a quote out of interest before having a go at making my own.i wonder what price they buy them in at

                            Comment


                            • #15
                              Originally posted by taliesin View Post
                              what have the people over at fisher been smoking.i just got a quote out of interest before having a go at making my own.i wonder what price they buy them in at
                              Taliesin, the original handle is not only too expensive. It's also too heavy. A wooden stem would be lighter and will do the same job even better because it will not generate a parasitic signal as a metal object.

                              Comment

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