Recent content by pberrett

Hi again everyone I finished my metal detector & pinpointer and you can see the build in this episode of Amateurlogic. The segment starts at about the 40 minute mark. https://www.youtube.com/watch?v=KG8kowLOfYw cheers Peter

What kind of spot is the old faithful?

Also a question for Gcause... When using the Baracuda in regular sand how did the depth compare to the Surf Pi 1.2?

I'm close to finishing my build but have a couple of other questions. I've been looking around for a suitable pole to mount the unit on but most of the ones i have seen which would be good (eg mops) have metal poles. Some are really good and are extendable. Would a metal pole be a problem and...

The rear of the main unit with connections to the coil and pinpointer.

The almost completed circuit board with a number of parts now replaced. I put an electrolytic capacitor (the wrong way round and something got fried. It also fried my irf 9640 mosfet.I've replaced most of the components up that end of the board and I'm getting proper power +5v and -5v to the...

These are various coils I have made and I will choose whichever works best once I get the circuit up and running again. I made a spiral coil using twin speaker cable. It worked pretty well but I found it was a bit heavy so I have reduced it to a single cable and rewound it. We'll see if it...

I picked up this nice case today in Rockby Electronics surplus store.You can see the switch I installed to switch between the coil and the pinpointer. More photos to follow.

I finished off the electronics for the Surf Pi last night as well as the coil. Its working fine and can detect, using the coil I have built, Gold to a depth of about 22-23 cm. I'm just about to head out to Jaycar to get a JIffy box for the electronics and I'll pick up some more wire to try out...

Ben I have a couple of questions regarding your comments above. 1. Does a surf pi need 300uH inductance? 2. How did you wind your coil? 3. Have you experimented with different types of coils and if so what works best? 4. What do you mean by zero discrimination? Are you saying it cant...

By the way I see there are no instructions included but I'm sure they'll be online somewhere. cheers Peter

Thanks Ben That's great information. I have a spare ferrite rod lying around I can use. I wonder what kind of cable to use? Anyway that aside here's the latest. My kit arrived today so this weekend will be spend soldering. I'll just start with the metal detector but include a switch and 2...

It shouldn't because the switch will only connect one coil at a time and the two will be kept separate. It remains to be seen whether it would actually work however. cheers Peter

Hi all I own a Tracker IV and an Aldi detector but like all people who gets toys I find myself wanting a bigger toy. So I've ordered the surf pi kit which I am going to build...

Is this a hint? http://www.indiabix.com/general-knowledge/inventions/011010