Delta Pulse

[kt315]

PLEASE, do not ask me privately about this schematic. I did not make that. I did read replies from someone who really did it, but writes a tuning was been difficult for him. thereto, the project has very low reaction speed on a target and a reason of it is still unknown. so the guy modified the schematic and offers it for sell.

yours

[amtech2005]

Delta Pulse

Here is Schematic

[Tatzel2wurm]

Not found

I can´t find the schematic from the delta pulse.


Can anywhere help?

[gemini]

hi, could you help me connection about Delta pulse ? For example Potansiometer, P3-Tr3 how can i connect them.
Thanks for your help.

Re: Delta Pulse

i think it is possible to use high pressure water tube with shield inside the tube: it have aluminium tube inside the plastic, i cut this tube to put wires inside, but it became very soft, so use needle to put wires, it is much better

Re: Delta Pulse

Is your coil shielded? If so how were you able to shield it? It looks very nice!!! Excellent workmanship!!!

HH

Beachcomber

Re: Delta Pulse

Hello Geo ,
For the can like i said :
70 to 75 cm and with a best design circuit 80 to 85 cm Treshold, in a moderate soil you will detect it at 70cm and 80 cm for sure.

Re: Delta Pulse

Hello Manu ,
Yes , first you make the form of the coil with pvc water tube with hot gun (the tube is filling with sand for make and put in a wood form ) after you put the wire turn after turn with a piece of flexible steal wire (like a giant needle) for 19 turns it take me 15 minutes not soo long, what you need is space!!! after you fill the tube with peanuts packing form (the wires must be firm in the tube ,not shaking), well condensed, and after you solder the wire and coaxial , isolate with paper masking tape (the best) and fix it with epoxy glue it is very important NOT to use silicon compend because it generate a corrosive vapor bad for your connexion .After you compress the coil a little and glue the end of the tube with the T Ok,I hope it is clear!!!
have a good day,Alexis

Re: Delta Pulse

Hello Alexis,

What a beautyfull realisation ! My coil was made by assembly of three disks of plastic but it's so nice with a circular tube. However i have never anderstood how can the coil enter in a circular tube without cutting the tube ? It's a real interogation. You may be turn the wire in the unclosed tube, after what you make the coil turn in the tube for bring the wire closer together with tape or something like that ? After what you connect your cable to the coil and close the tube ?

Nice realisation again ! I will try to make one similar. Do you use it with Delta Pulse or an another detector ?

Wich performances do you obtain ?

Thank you very much, Manu.

Re: Delta Pulse

Witch is the sensitivity for 2euro and for 330 ml can with this 11in coil?
By the way very nice coil.
Geo

Re: Delta Pulse




Hello Manu ,
For the coil :
Diameter= 28 cm (11inch the best compromise rapport)
- 19 TURNS Wire caliber= 25 Awg (0.45mm)
Resistance = 2 Ohms ; Inductance only the coil =335 uH measured .
A good Dynamic searchcoil.
Have a good construction , Alexis.

Re: can anyone say

Yes i anderstand but i don't have it. However if you build it, don't hesitate to communicate your performances.

Good luck

Re: can anyone say

OK. I have it. I am interesting in CAD format of schematic and PCB. I would like to modify the PCB. Withal graphic format is not usefull for order on a firm.

anyway thank you.

Re: can anyone say

Hi KT315,

Schematics of DP are on this forum in a message of Jean Charles Morin, the author of those one but not in CAD format. In searching a little bit you will find.

Best regards

Question about condensators markage

Hello,

After have checked and re-checked my components, i have a doubt about the markage of condensators.

On the DP MD plans there is C13 = 15 pF and C17 = 47 pF

And the condensators i had received are marked like this :

+ 150 HQ J
+ 470 AQ J

I know there is ambiguity between two norms of markage, the first who says :

+ That the last digit means the number of zeros to add to others digits for obtain a capacity in nF (XYN ==> XY + N zeros in pF)

In that case "150 HQ J" means 15 nF

And the second one who says :

+ That the capacity is just clearly written

In that case "150 HQ J" means 150 nF

But there is an ambiguity between those two norms (grrrrhhh!!! why is not clear .

Is anyone know if there is a priority to apply the rules ? As you guest i'm novice but i'm still arrived to build it and it was fun but right now is just a shame to be annoying by that

I hope my problem is just that !!!!

Best regards