Delta Pulse

[kt315]

Mohammed, LF411 is good for testing checking. however it is not good for using. low slew rate, 10V/us. what is strange you Moha fully being ignore all 100 pages in this thread and seems you wait something fantastic from your God Alla'h - the discrimination ferrous-nonferrous in DP3, un-bricks notch, depth 5 meters on gold mask. your eastern asiatics mentality is STRANGE AND CRAZY for me. i am in shock from your posts.

more fast matter discussed here hundreds times. I see for example OP42, low price, http://www.ebay.com/itm/1X-OP42GS-Hi...1#ht_728wt_922
and you can buy for them SO-8 DIP-8 adapter board http://www.ebay.com/itm/5pcs-SO8-SOI...#ht_3773wt_922

[mohandes]

Mohammed, LF411 is good for testing checking. however it is not good for using. low slew rate, 10V/us. what is strange you Moha fully being ignore all 100 pages in this thread and seems you wait something fantastic from your God Alla'h - the discrimination ferrous-nonferrous in DP3, un-bricks notch, depth 5 meters on gold mask. your eastern asiatics mentality is STRANGE AND CRAZY for me. i am in shock from your posts.

more fast matter discussed here hundreds times. I see for example OP42, low price, http://www.ebay.com/itm/1X-OP42GS-Hi...1#ht_728wt_922
and you can buy for them SO-8 DIP-8 adapter board http://www.ebay.com/itm/5pcs-SO8-SOI...#ht_3773wt_922

thanks
why you are angry !!!sorry me
OK , thanks .

[kt315]

you call me angry and AGAIN ask me about LRLs. what the H you ask. I AM NOT IN THIS FRAUDS LIERS MATTER FROM TOO START!
I was FIRST asking moderators to delete LRLs from GEOTECH and you ask me ABOUT LRLs again!
have a conscience Mohhamad!

[mohandes]

hi dear Kt315 .
i will make new smd PCB ( with your new schematic of DP2 ) , the schematic is ok ?
and about tnt caps ( 22mkfarad ) you say me attention to all links , and i add again and fault mt detector , please see .

regards

[kt315]

the schematic is ok but you do not wish to see changes done on it. as always. for example, I changed P.P.S. trimmer value on 100k,
because 250kOhm is more rare type. I changed C3 on 15nF, PULSE WIDTH was tuned to sure 150-500us.
if you want to add tantalums so stay on power lines near opamps, as near as you can.

[mohandes]

hi
i add caps but ....burn

[kt315]

shortly must to tell about static shielding of case.
there are 3 type of housing you use:
- fully metallic case
- plastic case with metallic front and back panel
- plastic fully case
according those type will be another way to shield you choice, not so specific, but if you do not know how so ask.
my case is fully plastic. fisrt stage I did cover inside by graphite aerosole a bottom, in place of PCB stay, and front panel .
all place around has to be free off the graphite was protected by scotch tape.

[kt315]

[kt315]

nice test on depth with big coil I see there in link... have to repeat it at our terrain.
http://www.popscreen.com/v/7capm/delta-pulse-dedekt%C3%B6r-test

[mohandes]

hi
i test delta in soil . if you see my last vedio in air testing you can see it can detect coin in 40cm but in soil can detect 26-30cm , it is good ?
and delta good machine , i test t buy 28cm coil and p.p.s=500Hz . it can detect any metal ( like iron and ..) and my idea it is not good so i will add discrimination parts and test it again.
ok for shielding i will add like your schematic and connect to front of Box.and your box have graphite or you add it , and if you add for why ?

[kt315]

for the discrimination and small coils I made KING COBRA VLF project. where you was in this time?? sleeping all time???
KING COBRA board covers fully all tesoro and whites classics schematics, all those tgsl of ivconic,
this is universal learning platform for everybody beginners.
DP is deeper, not for small coil and not for small targets. DP is for deeply bured treasure search, meteorits, tanks.
I test DP with small coil because I have to demonstrate for supporters my board is not fake, is not joke, and it is really working device.

[kt315]

second step. you have to glue a foil (I used a copper foil) on carton. solder a wire. put it by foil to bottom in the housing.

[kt315]

[mohandes]

thanks
Kt315 you make shielding very well ( i think you connect black wire to front of Box )
Dear kt315 , can you tell me best coil for DP2 , 1*1m ?

[kt315]

NOT. black wire is going TO BOARD, to special point for the shielding at board I being ponderable. a shield on front HAD BEEN DONE, by graphite layer. this is enough.