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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Tech Talk > Modifications, Do It Yourself & Repairs (Moderators: Eugene52, xavier, GoldDigger1950) >

?Strip Board? layout for the ?Bandido II U Max?.

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davidbat40

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #90 on: June 11, 2009, 12:05:01 AM »

thanks mike
i thought it was the domino plug to fit my hawkeye and the 180 one that one uses on projects
again thank you

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Mike In2mud Topic starter

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #91 on: June 19, 2009, 06:52:32 PM »

Hi Edouard and David.
I have not heard from you recently how are you getting on with your ..Stripboard.. projects.

I have finished building mine, but have had a series of disasters making the detector coil. I am now winding another set of coils and have had to buy another coil cover to put it in.

The coil works fine and will detect an ..Old English Penny.. at a test depth of 10 inches (250 mm) its just that the fibre glass resin I used has not set properly and will absorb water if I use it.

I also have another problem which I cannot seem to resolve, whereby the ..Discriminate Pot.. does not work properly and only discriminates on the first 10% of its range.
I will post some more photos soon.

All the best Mike.

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davidbat40

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #92 on: June 20, 2009, 01:27:42 AM »

hi mike
waiting to get paid end of month to get a new iron and a few parts
checked my wireing will have to restart gone wrong in 5 place,s
what size coil did you make (and what winding did you do)
the coil my mate made for the hawkeye did not work took it to brothers it measured 200 for frequancy so scraped it

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #93 on: June 21, 2009, 02:44:45 PM »

Hi Mike, I haven't done anything since my last post...was waiting for Paul A's news, but didn't get any...I'll have to do my own coil...

Will go on soon, let u know
Edouard

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davidbat40

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #94 on: June 29, 2009, 01:12:01 AM »

after a long drunkern weekend finaly got my iron and some parts from maplins
checked wires and rechecked all ok now ic sockets in place and a couple of other stuff as well
Mike did you sort out your problem with the Discriminate Pot

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Mike In2mud Topic starter

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #95 on: July 01, 2009, 06:43:25 AM »

I have not resolved my discriminate problem, I need to get some advice from an expert as to how that part of the circuit works, I am not sure what the waveforms should look like and what else will affect it.
If there is anyone who can help, please let me know.

best regards Mike.

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #96 on: July 01, 2009, 08:02:59 AM »

i am useing electrolytics caps 4.7μF for C38,C39 can they be anyway round
soldered - pin to colum1-row7 for C38 and colum18-row8 for C39 is this right

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davidbat40

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #97 on: July 02, 2009, 01:06:46 AM »

hi mike not knowing anythink about eclectronics but i found this if its any use

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http://www.geotech1.com/forums/showthread.php?t=14809

some other guy had problems with disc mode

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Mike In2mud Topic starter

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #98 on: July 02, 2009, 05:56:49 PM »

Thanks David for that link that was exactly the info I was looking for.

I now know that the circuit is not at fault, but that it was the way I wound the coil.
I tried to get the null point as near to zero as possible, when in fact I should have left it at 300mV.
With that coil I don't think the ..Discriminate.. will ever work properly.

In answer to your question about the electolytics C38 & C39 the capacitor pin marked with a minus (-) sign goes to the 0v ..Green track..

All the best Mike.

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davidbat40

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	Re: ?Strip Board? layout for the ?Bandido II U Max?. « Reply #99 on: July 03, 2009, 01:39:55 AM »

glad i could help
thanks for the reply on the caps

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