vandal pulse 1

[nelson]

Hello my friend.

About vandal1 wich is sasho design, have you got any others results to post?
In my case, is working fine, but if you put 12 vlts to it it get unstable. Yes i know vandal1 must be supply with no more than 9 volts to work properly, but has i said before i just chequed sasho schematics with vandal circuit and bealive me , the circuit is the sama, components the same, tracks the same. So now i need to know if you have tested with more than 9 volts?

Regards

Nelson

[nelson]

And how much will cost this?

[nelson]

Hello Bernte_one

Ok, yes you are rigth i will first check for what you are pointing out.
By the way, soldering a short wire btw the cristal case and one leg of capacitor close to the cristal will increase deep detection and also you get a stable signal.
Finally what was your batteries long after they drain off?

Regards

Nelson

[bernte_one]

hello nelson

i use rg58 or rg58u every time without problems make sure the your solder points dont are halfroken (some loose copper wires from the shield or core litz from rg cable)

@ sinko
go on, you rock
clean work

[sinko1]

Hi, vandal pulse 2 is ready. No more crystals and ic and oth.Increase deep with 15%, more stable, work with 3 different frequency 124hz. 420hz. 640hz.Power supply 9-12v.Easy set.We work to v3 with discrim, multitone, reject iron and other.Thanks

[nelson]

Hi Bernte One

Yesterday i finish to assemble vandal and i found that is a little unstable and deep is not to good. But then i experiment just by solder a small wire to the case of the cristal and the other end to one leg of the capacitos close to the cristal and the detector gots very stable and distance incresed for me about 30% more. My wedding gold ring was detected at 28 centimeters with a 21 centimeters coil.
Now i m trying to detect a problem with the coaxial cable that runs from the detector to the coil. This cable is RG 58, 80 centimeters long, but it looks that it runs into problems when you move it, cause the detector stops to detect and sometimes a stady sound comes from it. Nothing of this happends if you don´t move the cable, so the cable can be defective or is not the correct one for this detector.
I normaly use with very good results on detectors like Delta Pulse, speaker cable.
So can you tell me what cable you use on your vandal detector?
I also place inside the box 6 AA batteries, 2000 mA to have 9 volts.
I also tested the unit with 12 volts and seems to run fine too, but i need to do more experiments.

In advance many thanks

Nelson

[erdin]

Hi, where can i buy one of these?

[bernte_one]

hello sinko

i can still offer you to send you some better 32.768khz crystals

when time is right for vandal 2 you can count on me i will buy some

contact and deliveries were always good in past

you will make it

regards bernd

[jap]

Hi sinko 1
you've got it wrong and I hope to put it to all
So you understand wrong if you published it you will sell more as many,,,,,,,,,,,,,
best time
j.

[jap]

good

Hi sinko 1
good work
A fan of your work that I need pcb,software .Thanks
best time
j.

[sinko1]

Hi sinko 1
you say no no, this is a completely different machine ,,Are you maker?
j.

yes of course, I used the base for a decision from another circuit detector, and a completely different software and works very well

[sinko1]

Using micro-controller or IC solution only?

micro controler

[jap]

Hi sinko 1
you say no no, this is a completely different machine ,,Are you maker?
j.

[WM6]

no no, this is a completely different machine

Using micro-controller or IC solution only?

[sinko1]

May be this is: http://www.youtube.com/watch?v=PxhIhHz7eAU

no no, this is a completely different machine