Building MPP REV E - Need Help

[anil.berk]

Hi I am trying to build MPP REV E step by step. It seems okay to me until I reached step 8.

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Step 1: Check U3 pin 4 for -5V

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Step 2: Check TP7 for +5V

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Step 3: Tx driver pulse
I adjusted pulse period to 1 ms (1KHz) and pulse width to 100 us approximately....

[abra444]

Surf Master Pro assembled board for sale. No longer need it. What you see is what you get. 45$ shipped within US
Includes APM rotary seals, tokyo cosmos water resistance pots, barrel/jst end plugs. If you have any questions feel free to contact me.
https://ibb.co/P10ZcFp

[Hihacks]

Hi everyone,
To begin with sorry for my English, I'm french.
I just bought a surf PI 1.2 kit from silverdog, I made all the board and built a coil (24 turns, 20 cm diameter, 0.5 mm isolated cooper wire).
The problem is when I power the circuit, no sound comes from the piezo but a...

[GoldPandemic]

Hello, I made a pedal dynamo:


The larger cog is 160mm, the smaller cog is 70mm.
Presently I generate about 2 volts (with fast pedalling), my aim is 12 volts.

I was thinking of increasing the larger one's size and decreasing the smaller ones size.
Does anyone...

[reptooyep]

Hi there,
I'm building a TGSL detector but i have troubles with the machine and coil tuning.
I think it would be easyer to tune the detector with a working coil or tune the coil with a working machine...
But make the two tunings gets me mad !!
Could someone give me advices...

[javifalac]

Hello. I have problems with background sounds. I hear noise, somewhat unstable, and the depth is low. As I can enlarge the depth? Sorry for my English .... use google traslate ... ja ja

Has anyone solved this? I wish I could have more depth for the detection.

See all forums...

[brunos67]

Well Hello Everyone this is my first at making a metal detector. I have done all the soldering and have come up with a really ,really light weight body for my detector. My lithium 12v. 4500Mah battery fits in your vest pocket or pants. I'm working on my coil now don't know when it will be done. I'm...

[Bodhi3]

Hoping I'm not violating any forum's rule, I'm happy and proud to announce the English-translated exclusive interview I've done to George Overton and Carl Moreland, co-authors of the book "Inside the METAL DETECTOR".

To read the interview just click here:
http://bodhi3....

[chudster]

This thread is to collect templates useful for the Open Detector Project.

Attached is a engineering specification template borrowed from CERN and modified by me.

Credit is due to them for this and thanks for making this template available.

I have done this to kick...

[bravodenisu]

I made this beautiful Metal detector and I am very satisfied with it.
He made some changes that have given better results for metal products.
He completed so I made some footage that you can see how it goes and what I am all has changed in Detector .

http://www.youtu...

[jansonde]

Hello,

I `m loking for a

MINELAB RELIC HAWK

in a good & working condition

You can sent your offer to: janjunglas(at)gmx.de

Thanks a lot!