Delta Pulse

[6666]

6666,
no reason to scratch off the resistor value just cause -----
--- values of XR71 are working
--- values of DP are working
--- my values are working.

i suggest you to begin to learn the f-g electronics... yes, the electronics. if you are newbie you must begin to read the useful books
not asking me why values same or not same. you are like blind squerell in the midnight hoping values will
change something, depth or what you imagine yourself... but not... no difference.

Kt315 you missed my point
let me try this a different way by asking this question

Is the schematic in post #3251 AND the BOM in post #3271 100% correct and are they both for the PCB you sell ?

[kt315]

6666
you missed my point

this pic is open for you? what you see there?
http://www.geotech1.com/forums/album...chmentid=40452

answering i say you again. ALL VALUES on the PCB are correct. if you see BOM ok do like bom file.
if you think 12k you change on 10k you get unworking something that is only your delusion.

two people emailed me about BOM file. so i did new BOM for them, backing to old values.
you do not see whole my correspondence. if someone is beginner i give info on zero level too.

[6666]

answering i say you again. ALL VALUES on the PCB are correct. if you see BOM ok do like bom file.
if you think 12k you change on 10k you get unworking something that is only your delusion.

OK you win.

[star]

delta pulse

[Toros]

hi George

that will be only good but my english is not so perfect to make it.
i began write some article for russian magazine but it is still not ended. also i have html from one russian Koliaj name
who was first done DP.
if who will agree to translate in english i will send him both texts.
i did pic you could see the Koliaj's text
http://storage7.static.itmages.ru/i/...539ceb8677.jpg

thank you for support

KT 315 why are you giving incomplete information? The correct link is:
http://radioskot.ru/_fr/31/Delta_PULSE.pdf
Anyone who can read in Russian can take advantage of the file.

[kt315]

i always am giving incomplete information and my boards are trash. and my name is not Eric Foster.

LOL.

[Toros]

I do not comment on your boards. I have drawn attention to the fact that the file is incomplete. It is also almost unusable. Can not be printed. It can only be viewed on a computer.

[kt315]

do you mean the background color of the text, blue color? so this text is not mine written and thats really HTML saved (his site is not more exist, but all info i save in the archive).
if you would asked me i can email it to you, but you are only throwing the reproaches on me.
this text i am not like... not so good technically IMO.

[steaua581]

sorry, just my opinion. i read trough many posts and projects (on different forums) and it seems things get confusing at times. forum topics reach hundreds of pages if not more. the projects go trough many transformations...and i wonder why those files/updates are not done as the project goes by, a new post (update) has to be posted to get all the right files and the right workable project on the go. You find a file here and a file there at times confusing...especially if someone has not much experience.
in this case...Delta Pulse
Status Working project 100%
Versions: Turkish version (status working ) , other version Kt315 ...B version C version etc
Mods. Dumping value etc. + - improvements
Frequency - change resistor at a, b , c d etc
This way someone might have an idea of a status and whats going on. As a newbie is really hard to take all the forum, try to figure out whats working and whats not. in some cases people end up buying parts build a project and at last they realize it was not a workable project.
in other words a "resume" of the project as everything advances it will help greatly (what we learned so far)...sometimes such topics go on for years.
Definitely, just an opinion...

[kt315]

The Turk should be here and bears responsibility for his boards. he has to answer on all problems in on-line mode.
nice position to sell boards on ebay and to say 'there is kt315. he can help.'
definitely just opinion.

[jladre]

Why does many people keep on complaining about errors. I'm a newbie in electronics and i don't have expensive machine like oscilloscope. BUT i've build most of geotech project her from pcb making until a working machine. Namely the HH, barracuda, surf xx, surf longboard, delta pulse, turkeys delta pulse, felezjoo pi, and tgsl. Most problem I encounter is not in the design but some parts value fitted in wrong place. And also some minor problem can be solve by patienly studying the problem of your board. So what can I suggest to people full of complain is give time to study your problem and collect ideas in the forum because most problem is already been discussed. Don't relay on asking and asking because not all people have time to entertain your problem, they have thier problem too...
If you can get help then its better but if not its great so that you can measure how strong your determination on this project..

[eclipse]

People prefer the easy way (asking for help and not try to debug). If you're going to build a metaldetector (or whatever) people are missing the main point - learn something new.
And best way to learn is trial - error. Some people don't try too hard. Otherwise if you're building a metal detector just in order to use it, it maybe better to buy pre-assembled board.
--
BTW I want to share something with you guys. I've built couple of Delta Pulses and worked with 1x1 frame coil on the field.
And I will be honest - I'm not too impressed.
Threshold is always unstable (drifts) and pin-pointing with frame is anything but easy. Smaller coils (<60cm) have way less depth.
Otherwise depth is not too bad on large items on the large coil, which can only be used on open spaces (fields). Forget about forests and bushy areas.

[kt315]

i tested voltage indicator again and changed RR values. so now it tuned on edge 11.4V-11.6V.
look schematic.
http://www.geotech1.com/forums/album...chmentid=40719
i will do a video later.

[kt315]

People
Threshold is always unstable (drifts) and pin-pointing with frame is anything but easy.

i would like to look on how you did shielded screen inside your enclosure. give me pics.

[kt315]

no pics - no matter - no problem. DP is most stable detector in the world replicated in thousands pcs.