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Offline japaneseTopic starter
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« Reply #20 on: December 18, 2010, 04:24:37 pm »
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Hi vresak
           yes it is good  Pinpointer .
best time

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my project.JPG

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Offline m@kedonas
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« Reply #21 on: January 03, 2011, 12:50:04 am »
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Thank  you  japanese for
Pinpointer project for Beginner  Teach
Costas

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Offline japaneseTopic starter
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« Reply #22 on: June 08, 2011, 07:40:08 am »
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Hi m@kedonas
                  Hello and I hope to be like them and implement projects.
best time
j.

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Offline mikebg
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« Reply #23 on: June 08, 2011, 10:17:44 am »
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Hi Japanese
What battery you use in your project? Can measure at what minimal voltage the circuit can operate?

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Offline japaneseTopic starter
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« Reply #24 on: June 08, 2011, 11:40:19 am »
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Hi mikebg
    the project Beginner 9v.
the project Pinpointer Petrapin I use 12-volt battery, nickel cadmium used in some of the old cameras.but minimal voltage 9 volt i tested.

besr time
j.

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Offline tom4202000
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« Reply #25 on: June 08, 2011, 12:43:54 pm »
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Thanks for the pinpointer project post, japanese.

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Offline mikebg
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« Reply #26 on: June 08, 2011, 10:16:25 pm »
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I think the search oscillator will operate powered by two AA cells. There is an idea (proposed in geotech1 forum) to design a pinpointer as about 500 mm long magic wand.

I have 200mm long ferrite rod with diameter 10 mm. Two AA batteries need about 120 mm and the rest 180 mm will be PCB and controls. I started to make the search oscillator.

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« Last Edit: June 08, 2011, 10:18:51 pm by mikebg » 		Logged
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« Reply #27 on: June 09, 2011, 08:01:36 am »
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Question
in the cct doesn't it say L1= 80 turns .2mm, L2= 35 turns .2mm ?

you are saying 120 turns .2mm

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« Last Edit: June 09, 2011, 08:09:09 am by 6666 » 		Logged
Offline japaneseTopic starter
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« Reply #28 on: June 09, 2011, 08:55:41 am »
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Hi 6666
                    in the project Beginner....    L1= 80 turns .2mm, L2= 35 turns .2mm
        the project Pinpointer Petrapin  l1=l2=200 tu, 0.17mm,,,,,,120tu, 0.2mm

    These two projects are separate from each other completely, but taking part in the idea.

best time
j.

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Offline 6666
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« Reply #29 on: June 10, 2011, 06:10:23 am »
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Thanks for the reply Japanese
what can we use in place of the MCP602 ?
cheers Wink

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