possible big problem on surf 1.2

[bainsey]

Hi,

I have 0.030Vdc on coil connector (with metal over coil or with no metal)

Try to get you detector to work proprelly before you get to your coil....

Check my post´s

Regards

So your detector is working with a voltage of 0.3 between coil terminal? I just can't understand why mine is not working.

Would it be possible for anyone to post some pictures of there fully working unit with all the potentiometer fastened to it as well, so.that I can check it against min , close up pictures would.be great

[bainsey]

In fact I'm now.convinced it's the way I have connected either my battery, buzzer and potentiometers, I really could do with pictures or a drawing showing exactly where each wire should connect to on the terminals.

THanks
andy

[bainsey]

Anyone? I feel so close to completing it now just uninsured which connection goes where

[6666]

Bainsey
Generally Most people wire the controls to external pots, to be mounted on a box, it gives a bit more flexibility for setup.
I would suggest you use pcb pins on the pcb , for soldering the connecting wires from the pots to the pcb.
Here is a rough drawing.
with the coil connections, the braid of the coax goes to the GND, use PCB pins.

[Nezocas]

Hi,

Read carfully:

http://www.geotech1.com/forums/showt...be-apprehended

[bainsey]

The pot that you have written 10k next to came with my kit and has 2 more connections on the sides, where do these connect to And which goes where, thanks for the help

[Nezocas]

The 2 connections are for the on/off switch (12Vdc cut-off from battery).... check with your continuity multimeter test

[Mohamed Ghitas]

Hi Nezocas, Please if you have the Schematic and the PCB and list of component of your detector please post it here thanks in advance

[Nezocas]

http://www.silverdog.co.uk/shop/imag...ematic1_2A.JPG

http://www.silverdog.co.uk/shop/imag.../partslist.txt

http://www.silverdog.co.uk/shop/imag...1-1024x768.jpg

[Mohamed Ghitas]

http://www.silverdog.co.uk/shop/imag...ematic1_2A.JPG http://www.silverdog.co.uk/shop/imag.../partslist.txt http://www.silverdog.co.uk/shop/imag...1-1024x768.jpg

Do you have the PCB please send me in private message if you don't want to share it

[Nezocas]

Ok.....

I will send a Surf PI Longboard to your PM inbox

[Mohamed Ghitas]

Ok..... I will send a Surf PI Longboard to your PM inbox

OK iam waiting

[chemelec]

New PCB and Design, Single Sided PCB

I was curious about all the problems guys seem to have building the Surf detector.
Also I was not happy with the audio output.

This one drives a speaker directly with reasonable volume.

I connected it up to my power supply and a 3 inch coil that was laying on my bench and it worked straight away.
No Adjustment other than turing up the volume.

I will set the offset later and do some proper adjustments.
When I get some time and do further testing.

This was designed using the Origional Surf Schematic as posted by Carl.
Mainly I just modified the Output.

All Jumpers on the PCB are "0 Ohm", 1/4 watt Resistors.
Just because I have them.

[Mohamed Ghitas]

I was curious about all the problems guys seem to have building the Surf detector.
Also I was not happy with the audio output.

This one drives a speaker directly with reasonable volume.

I connected it up to my power supply and a 3 inch coil that was laying on my bench and it worked straight away.
No Adjustment other than turing up the volume.

I will set the offset later and do some proper adjustments.
When I get some time and do further testing.

This was designed using the Origional Surf Schematic as posted by Carl.
Mainly I just modified the Output.

All Jumpers on the PCB are "0 Ohm", 1/4 watt Resistors.
Just because I have them.

Hi chemelec
nice work
could you please post the PCB design??
another one thing how deep your detector get a coin ?
thanks in advance

Regards
Mohamed Ghitas

[chemelec]

Here is my Schematic and the PCB Artwork.