Delta Pulse

[kt315]

it is not last question in your pics. I took this way of shielding from Deepers 10DD. had WROTE ABOUT IT. READ ATTENTIONALLY ALL THIS THREAD.
black wire you see at pics under the switch is FOR SHIELDING. this wire GOES TO THE RESISTORS on PCB.

[mohandes]

We have built up three detectors. One that SnifferXR71 with 45cm coil and the other two as DeltaPulse with large coil 1X1 m. All works absolutely perfect.
I personally instead of the lm556 I mounted two lm555cn circuits (CMOS) - thus increasing stability;
If you want maximum depth of 1x1 m coil then be supplied with two batteries of 12 V (24 V so) - it's basically just IRF powered by 24V - there is here a scheme Bulgarian pi powered at 24V / are a couple of changes.
Regards

can you say more about lm555cn , and can help use to make that ?
regards

[mohandes]

hi kt315
please say me about the my question .
( i ask it very ) how you certain R6 and R5 , for which coil ( ohm and inductance for coil not important )
can i add C19 , C20 , C23 ,C24 ?
and last question in my pic ?

i use lf357BH and more than better ( 2cm increase for coin ) and ne556 ,lm555 , all tl082
when i change lm555 to TLC555cp sound not work well , why ?

ً AND MANY THANKS TO MY OLD FRIEND Jose.َ

[kt315]

mohandes seems made his first WORKING detector using turkish board.

[serban]

We have built up three detectors. One that SnifferXR71 with 45cm coil and the other two as DeltaPulse with large coil 1X1 m. All works absolutely perfect.
I personally instead of the lm556 I mounted two lm555cn circuits (CMOS) - thus increasing stability;
If you want maximum depth of 1x1 m coil then be supplied with two batteries of 12 V (24 V so) - it's basically just IRF powered by 24V - there is here a scheme Bulgarian pi powered at 24V / are a couple of changes.
Regards

[kt315]

revised DP_part_list.txt

[kt315]

revised DP_part_list.txt

[calebsone]

Oh sorry I should have asked you all ways make your projects easy to follow thanks that was what I was trying to do

[kt315]

part list DP_part_list.txt

[calebsone]

a parts list

ok i am writing a parts list from the diagram kt or anyone whats the tuned 680 resistors about like part number and what meter is pa1 i see ma but 100-0-100 or something else thanks in advance

[mohandes]

hii want make 28cm and 45*45 and 1m*1m coil with cat5 cable , and ineed number of turn for each coil .regards

[kt315]

do you agree Kt315 like Jose adjusting ?

thinking you will have self 'specific and very effective for everybody recommended mine adjusting' very soon Mohandes adjusting

Kt315 do you yet sell your DVD ??i find iron lf357 (MILITARY IC ) , and i think more better , your idea ??

did not meet this type, do no know. try. DVD will be putted for free whom buys the board, on wishing, with P-CAD 2006 files, as I promised.


kind regards

[mohandes]

sens pot is not on max position. may be 7...8.
threshhold is in middle position or near middle position, tune it at start. remember DP has advanced autotuning (SAT - SELF AUTO TUNING), so futher
do not touch thresh because not need.
thresh perhabs seems working something strange... but further as you will more learn you will fell that thresh pot is unwanted... perhabs

Mohandes.
If you have manual mode, try the following setting:
Switch to Manual Mode:
Set the TX power 150 us.
Adjust the Threshold, in their midst or center point (50%).
Set the gain to minimum (0%).
Set the Delay to decrease the audio pitch two or three, tic per second (2, or 3 beeps)..
Switch to automatic mode.
Adjust the gain control to 90% or 100%. which is stable.
Now, do not touch the control delay, the setting in manual mode is optimal for the characteristic of the coil you are using and is optimal for automatic mode.
Reduce delay control, beyond the designated spot, only generates noise and instability.
This will be true if the coil, and resistance delay, are suitable for the characteristics of the Delta Pulse.
Delay modified control, usually set between 25 to 30%.
At least in my DP, works as described above.
Jose

hi my friends
i use the Auto mode ( i remember you Kt315 , you say it is better ) and i set it like #2480, and i now understand my adjusting fault
i yet dont use manual mode but today i try .
i will try like your dp my friend Jose .
do you agree Kt315 like Jose adjusting ?
Kt315 do you yet sell your DVD ??i find iron lf357 (MILITARY IC ) , and i think more better , your idea ??
regards

[Jose]

Mohandes.
If you have manual mode, try the following setting:
Switch to Manual Mode:
Set the TX power 150 us.
Adjust the Threshold, in their midst or center point (50%).
Set the gain to minimum (0%).
Set the Delay to decrease the audio pitch two or three, tic per second (2, or 3 beeps)..
Switch to automatic mode.
Adjust the gain control to 90% or 100%. which is stable.
Now, do not touch the control delay, the setting in manual mode is optimal for the characteristic of the coil you are using and is optimal for automatic mode.
Reduce delay control, beyond the designated spot, only generates noise and instability.
This will be true if the coil, and resistance delay, are suitable for the characteristics of the Delta Pulse.
Delay modified control, usually set between 25 to 30%.
At least in my DP, works as described above.
Jose

[kt315]

sens pot is not on max position. may be 7...8.
threshhold is in middle position or near middle position, tune it at start. remember DP has advanced autotuning (SAT - SELF AUTO TUNING), so futher
do not touch thresh because not need.
thresh perhabs seems working something strange... but further as you will more learn you will fell that thresh pot is unwanted... perhabs