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Tesoro Tejon

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  • Tesoro Tejon

    Hello friends!
    This is almost the whole scheme of the analog part of Tejon. if
    anyone have information about missing values ​​of the capacitors let's share them.
    Attached Files

  • #2
    thanks N@SKO. great work done. I have read Tejon is similar to Troy Shadow but now see it is not.

    wish you success

    Comment


    • #3
      Thanks a bunch, really appreciate posts like this.

      Comment


      • #4
        Originally posted by N@SKO View Post
        Hello friends!
        This is almost the whole scheme of the analog part of Tejon. if
        anyone have information about missing values ​​of the capacitors let's share them.

        Small additions and corrections schemes
        Attached Files

        Comment


        • #5
          top priority

          this is no 1 job for silverdog over the summer PCB

          just a bit bigger holes please

          Comment


          • #6
            Originally posted by digger barns View Post
            this is no 1 job for silverdog over the summer PCB

            just a bit bigger holes please
            it's a real problem people does not wish to know some technological things/aspect. GMT King cobra PCB has so small diameter for wire holes I can not back them in PCB! I use 1.2mm diameter for fat wire and 1mm diameter for thin wire, thinking that is enough.

            Comment


            • #7
              This last scheme is fine? Free errors?

              Comment


              • #8
                The -5V regulator has IN and OUT swapped over.

                Comment


                • #9
                  Originally posted by Skippy View Post
                  The -5V regulator has IN and OUT swapped over.
                  78L08 too.

                  Comment


                  • #10
                    more?

                    about * capacitors?

                    What is the frequency of the device?
                    What type of coil used? Ring? DD?
                    What are the parameters of detection device?

                    Comment


                    • #11
                      see this! correct this!
                      Attached Files

                      Comment


                      • #12
                        I agree with the oscillator power supply problem, I don't think transistor V2 will feed +8V/-5V into the 4024 logic IC (powered off 0V and +8V). Diode D7 is probably shown correctly connected, to stop the -5V supply going positive. R55 won't be 440 ohms. The * value capacitors will be unmarked SMD ones, hence the lack of values on the schematic, they would mostly need removing to measure them. Is C4 even fitted? I would think it must be very small in value, else it would upset the operation of the phase detectors by adding a lag to the inverted signal. Presumably the opamps and comparators are powered from +/-5V?

                        Comment


                        • #13
                          transmitter sheet very similar in ELDORADO or LOBO
                          You can take the whole scheme of the transmitter by LOBO )))

                          Comment


                          • #14
                            Originally posted by kt315 View Post
                            thanks N@SKO. great work done. I have read Tejon is similar to Troy Shadow but now see it is not.

                            wish you success
                            Troy Shadow chronology:

                            * Troy Shadow X2 = Tesoro Silver Sabre
                            * Troy Shadow X3 = made by Fisher
                            * Troy Shadow X5 = Troy Shadow X3 with some adjustments on front panel, instead being fixed inside.
                            ...
                            * Troy Shadow X7 = Tesoro Tejon, never actually happened!

                            Comment


                            • #15
                              I transfered schematic into ExpressSCH.
                              Also i am giving here .sch file so it will be much easier to make further corrections and post them back here.
                              Yes there are several suspicious points in schematic. (for example: RST on 4024 should go to GND)
                              Need to be corrected.

                              Cheers!
                              Attached Files

                              Comment

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