Does anyone know how to make a pinpointer?

[azigta]

I was playing around with the MiniMax in LTspice and decided to re-configure the minimax and use some of Gary's (chemelec) pinpointer and came up with this. The LTspice run looks very good. Now all I have to do, is breadboard it up and test in the real world. I have to wait until I receive some ferrite cores to wind the 2 mH inductor. This thing appears to be very sensitive for a pinpointer.

[ATTACH]38772[/ATTACH]

That's very interesting. I've talked with silverdog and he told me he will ship me the minimax pcb and some components so I will make the minimax, but I'm interested in reading what you are going to do, so be sure to leave a link over here when you do it. Thanks

[azigta]

Hi, I ordered the minimax pinpointer some time ago from silverdog and he sent me some components, I have soldered the BAV99 and the MMBT4403, now. It was my first smd soldering ever. It was fun.

But he sent me a 2N7002 mosfet, that I'm guessing I can put in the place where the DMN2075U mosfet goes. Am I right? The 2n7002 doesn't appear on the schematic but since it is the only mosfet in the schematic, I'm guessing it's the one I have to solder. Thanks

[silverdog]

you are correct

[azigta]

you are correct

Thanks!