RELIC HAWK

[erolunall]

Hello Fred

if you can write Op-amp (IC) names and Voltages on IC beetwen +- when Dedektor Working Will be helpfull.

Best Wishes
Erol

[Max]

Hello

I asked my friend Asenkron to Draw new PCB for RH at http://www.geotech1.com/forums/showt...=14025&page=27

He is ready to draw but some questions.

Shematic is True? İt is simülated on LTspace
Power suply lines İs not Clear
There are a part which both side 2X2600uF Codansatörs , writing power. What is this part? all Op-amp names list and input voltages for Op-Amp. Last question There are some + - and +2.5 -2.5
is this same for all schematic

Asenkron said He needs this information to draw a good PCB
if Someone explane this questions. He will draw a new PCB for Relik Hawk in two day. He is waiting İnformations.

Best Wishes
Erol

Hi,
can't give a sure answer at now... but can say that probably the schematic is 99% accurate; minor stuff could be related e.g. to the identification of some parts like the famous unknown transistor used at oscillator.

When I made it... using Fred's pcb I had to spot little mistakes... and correct them, then circuit worked as expected, the md detected at very nice distance so it's even sensitive as we expected.

Just I had a worse problem with disc: far iron detection... means some pieces of iron were detected at far (more than 25cm) but discriminated (thus give no signal) when near the coil!

But you must consider that I had no real , original RH coil from ML... I made myself... tuned myself... and maybe, probably made some mistake at phase shift between tx and rx coil... cause only problem is at disc of FAR iron. All the rest works by the book, so we said that device was cloned 95%.

Indeed I still don't know why I had that far iron detection (I guess I made bad coil or not good enough, wrong phase on it).

Other problems were already solved.

I cannot resume RH project cause need extra instrumentation and lab up and running and I haven't at now... that sure will require much time months probably, so would be nice if you guys will make a new pcb and will have success with it before that.

Kind regards,
Max

[Ultimate_Haze]

Its have been listed already but here it is:
Relic Hawk Parts List:

Resistors:
2k2 =1
15k =1
470R=1
100R=2
4k7 =4
27k =6
47k =10
6k8 =2
4m7 =1
18k =3
820k =1
330R =4
33k =1
360k =4
10M =5
1M2 =1
2M2 =1
22k =5
1M6 =1
620K =1
100k =11
68k =2
10k =2
91k =1
470k =1
47R =1
CAPACITORS:
220 nf =5
6.8 nf =1
100 nf =32
10 nf =4
470 nf =4
1 nf =6
2.2 nf =2
1 uf =3
ELECTROLYTIC:
4.7 uf 16v =1
470 uf 16v =3
2.2 uf 16v =1
PCB/TRIM-POT:
10k =1
100k =1
POTENTIOMETER:
10k =2
100k =1
DIODES:
1n4148 =7
1n4007 =1
SPECIALTY:
LM336 2.5 volts
TRANSISTORS:
BC557 =2
BC547 =1
BC517 =1
INTEGRATED CIRCUITS / "ICS" :
CD4024 =1
CD4053 =1
CD4066 =3
TS27M2 =3
TS27M4 =1
LM339 =1
LM393 =2
NE5534 =1
Inductors:
15 millihenry =1
1 millihenry =1

Thanks.
Please upload here when ready.

[erolunall]

Hello

http://web.archive.org/web/200702222...200DiscEng.htm

is it explaning Max discrimination problem?

Regards
Erol

[asenkron]

HELLO

U11 CD4053 PİN NO SCHEMATIC NO - PROBLEM baglantıların pin karsılıgı yok semada.
U13 CD4024 1 PİN CLOK f kode -f kode U2 LM393 burdan alınması dogrumudur tx osc den alınması gerekmezmı.
kulaklık cıkışı için 15mh bobın cocu yerde bulunmaz burayı makul sekılde duzenlesek.
pcb basladım acil cevap.turkce bılen ingilizceye tercume etsın .simdıden tesekkurler.

[asenkron]

merhaba

acil bilgileri bekliyorum.

[Qiaozhi]

Hello

http://web.archive.org/web/200702222...200DiscEng.htm

is it explaning Max discrimination problem?

Regards
Erol

No ... because the link concerns discrimination in pulse induction detectors with mono coils, whereas the Relic Hawk is a VLF-IB.

[asenkron]

MERHABA

semadaki besleme kodlamalarının yenıden duzenlenmesını istiyorum.vee + ,+,+2.2 ve neyin nereye gıttıgı bellı degıl.semayı cizeni yakalarsam öpücem.
tıkandım kaldım pcb cizemıyorum.

[erolunall]

Asenkron Asking there is not connection for U11 cd4053
is it true take U13 Cd4024 first pin clock f kode -f kode from U2 Lm393? İs it have to be taken from TX oscilation ?
it is hard to find 15 mh wire for earplug connection .can we rearenge for this part of schematic?
somebody can rearrenge suply coding on schematic.
I can not understand which line going where?
Please help on schematic.İs there a clear drawed schematic?

[erolunall]

Selam Asenkron

işte temiz şema,birde Fred in çizdiği PCB.

ekledim

clear schematic and PCB of FRED.

Erol

[erolunall]

Pardon Şema burda

[ivconic]

"My" schematic is actually Max's schematic. I take his schematic and just draw it in another software. Also, excluded SML mode "switches" and following components. PCB's....previous one and my pcb are 100% accurate and matched to schematics....so..where is the problem?
Don't guess me wrong, but i took pretty skim look at my new Musketeer and spotted something pretty misty there! I can not elaborate this right now, dont have details yet..but seems that we made huge mistake reffering GND and minus rail! Some components are wired by mistake on GND and some also by mistake on minus!!
I need some spare time and good nervs to trace all over again and correct those few mistakes. I just checked few suspicious traces on Musketeer with ordinary ohmmeter , so far... results were confusing much!
Give me some time...these days i am in a huge responsibillities. Dont have much time to sit and work.
But i am sure there are few major mistakes (made from a very start) - that's why we have problems with this!

[asenkron]

hello

verdıgınız semada negatıf refarans alınarak +2.5 ve - 2.5 elde edılmış .
fakat gnd referansının bır ucu vee bu durumda gnd merkezden kacık olmazmı .gnd sorunları yasatmazmı.
cizdiğiniz voltaj dıyayramına göre gnd vee göre 5v ta olmalı.
sunu sormak istıyorum .batarya voltajıyla opamplar beslenıyor .tam simetrikmi beslemeleri.yoksa verdıgınız dıyagramdaki gıbı kacıkmı.
verdıgınız semayı sımule etmeden pcb cızmıycem .cunku buradakı hata tum ayrımı berbat eder.cunku opampla gnd olusturulmuyor.buraya takıldık.
kanıma besleme voltajının tam ortasına gnd olusturup.diger referans voltajlarını elde etmek.

[erolunall]

Selam Asenkron
İvconik orjinal dedektöre sahip. Senin bahsettiğine benzer hatalar oldunu ve yakında düzgün çizimleri vereceğini yazmış.
bencede çizme.
Erol

[N@SKO]

Some idea from where can bay little transformer for audio stage.
I think this maybe is stаndard part.
I put neosid inductor 22 mh with 680 nf but not work