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Offline apocalypto
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« Reply #60 on: November 05, 2009, 05:07:50 am »
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Hi,

1) the Battery 12V and what about the intensity (I) in Amper?

2) I need schematic to connect the potentiometers with the pcb

3) The parts list and the equivalent components

Thank you for ALL
Hi Eugen and electrosoft please answer me

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Offline Eugene52Topic starter
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« Reply #61 on: November 06, 2009, 11:23:20 am »
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Quote:Posted by apocalypto
Hi,

1) the Battery 12V and what about the intensity (I) in Amper?

2) I need schematic to connect the potentiometers with the pcb

3) The parts list and the equivalent components

Thank you for ALL
Hi Eugen and electrosoft please answer me


Hello Apocalypto . What version schematic did you use ? Was it this latest one I have posted here ? Also which PCB file did you use ?
Regards.........Eugene

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Offline electrosoft
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« Reply #62 on: November 06, 2009, 01:28:14 pm »
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Hi Eugene52 i maked simple side pcb but detection is very low not convince me i will tray to make double side pcb but i need your help can you edit or resize this pcb i havent complet version sprintlyout  Sad  {alt}
br!

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Offline Eugene52Topic starter
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« Reply #63 on: November 06, 2009, 04:02:39 pm »
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Hello Electrosoft . If your detection tests are bad you may be using the wrong value of damping resistor and also the diodes you are using are not correct . I am almost positive it is a component issue . A few months ago a big discussion on diodes related to the transmit pulse was discussed on another forum . You should be detecting a small euro coin 30-40 cm in the air [minimum] not 15 cm . I can check for a double sided PCB but in the mean time you can do some trouble shooting with your existing circuit and re-check your schematic . T1 can be IRF-740 , R5 damping resistor can be 680 ohm 1 watt resistor . Diodes VD1,2,3,4 can be 1N4148.
HH..........Eugene


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Offline hesamavr
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« Reply #64 on: November 07, 2009, 08:36:42 am »
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Dear Eugene52

You forgot to answer my previous post. I ask it again here.

You posted these two schematics of XR-71.
They have some differences in some parts and values. which schematic is better and correct, furthermore which of them has more sensitivity?

Best Regards

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Offline Eugene52Topic starter
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« Reply #65 on: November 07, 2009, 11:07:31 am »
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Quote:Posted by hesamavr
Dear Eugene52

You forgot to answer my previous post. I ask it again here.

You posted these two schematics of XR-71.
They have some differences in some parts and values. which schematic is better and correct, furthermore which of them has more sensitivity?

Best Regards
[/quote

Hello Hesamavr . Use this schematic I posted here below !!! Version 6.0 from last month . It works very good and has been tested by many builders . The PDF file of "XR71" is an old schematic and a few parts are now obsolete . Build the Delta Pulse !!!! If you build the circuit and coil correctly it will detect very deep , depending on the targets size . The Delta Pulse is a Deep-seeking PI for Relics , Caches , Coins .
Again , use this schematic here !!!!
Best Regards........Eugene

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Offline Cornelius
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« Reply #66 on: November 07, 2009, 12:17:50 pm »
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Eugene can you post the PCB and the component layout of this schematic   ?   Cornelius

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Offline electrosoft
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« Reply #67 on: November 07, 2009, 12:57:38 pm »
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Quote:Posted by Eugene52
Hello Electrosoft . If your detection tests are bad you may be using the wrong value of damping resistor and also the diodes you are using are not correct . I am almost positive it is a component issue . A few months ago a big discussion on diodes related to the transmit pulse was discussed on another forum . You should be detecting a small euro coin 30-40 cm in the air [minimum] not 15 cm . I can check for a double sided PCB but in the mean time you can do some trouble shooting with your existing circuit and re-check your schematic . T1 can be IRF-740 , R5 damping resistor can be 680 ohm 1 watt resistor . Diodes VD1,2,3,4 can be 1N4148.
HH..........Eugene



hi Eugene my deltapulse now is more sensitive i changed the irf to 740
with 32cm coil i detect coin easly to 30 cm and cola can to 50cm now i have to remake my 1m/1m coil thank you again
br!

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« Last Edit: November 07, 2009, 01:17:05 pm by electrosoft »
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Offline apocalypto
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« Reply #68 on: November 07, 2009, 02:52:06 pm »
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hi everyone,
I purshase the components  (i can find LF357) i'm interesting in the pcb posted by electrosoft in page N?4 called "pcb single side.zip", if is not correct please inform me.

we need :

- A CORRECT pcb (for me i can make only one side pcb)
- A correct part list
- the specification of the battery
- schematic to connect the potentiometers with the pcb
to resume, we must make a complete project (all elements to do a good metal detector)

thank you  Smiley

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Offline hesamavr
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« Reply #69 on: November 07, 2009, 03:31:01 pm »
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Dear Eugene52

Thanks for your reply.

I have other questions :

1 - please specify the voltage of C32 in the schematic, I mean 4700uF capacitor.

2 - Can we use another Diode instead of STTH1210D ?

3 - Please specify the diameter of Coil's wire.

4 - What will happen if we use the 40cm Coil instead of 110cm*110ccm ?   

Kind Regards

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