Delta Pulse

[kt315]

Hi KT315
maybe a silly question, but have you made a fully 100% working delta pulse ?

hi 6666,

I did Delta Pulse on PCB made of one guy from Latvija, but he refuses to answer now. I did decide to redesign and to order a bunch of PCB's so everybody can build DP without problem. My DP had been sold to guy in Ukraina. Yes, DP is 100% working, very sensitive and stable. For example, in a field I lift the coil up on head level and there is NOT a sound from the speaker.

[detecto]

Delta pulse is good detector, i only hate big current consumpation up to 250mA with full detection
Ofcourse Delta can be improved with couple little mods.
Regards
Detecto

[kt315]

Delta pulse is good detector, i only hate big current consumpation up to 250mA with full detection
Ofcourse Delta can be improved with couple little mods.
Regards
Detecto

1. you use high value of PPS.
2. you set big PULSE WIDTH value. decrease it to 250-300 usec.
3. you have low inductivity of the coil. increase it to 400-450 uH.

[kt315]

my last update - for more stable working I did set an impulse converter. so DP works from 8 pcs of AA type now.

[detecto]

1. you use high value of PPS.
2. you set big PULSE WIDTH value. decrease it to 250-300 usec.
3. you have low inductivity of the coil. increase it to 400-450 uH.

I will try this.
Thank you kt315
Regards
Detecto

[detecto]

It's not bad to make delta pulse in SMD.
Than it can be packed in smaller case.
When i have some free time i will do that.

[kt315]

It's not bad to make delta pulse in SMD.
Than it can be packed in smaller case.
When i have some free time i will do that.

you only will waste your time. if you will get a problem NOBODY is not be able to help you. you see yourself - people constantly ask to help, but there are NOT the effective suggestion. that is because they uses unknown PCB layot or do PCB at marrowbones.

[detecto]

you only will waste your time. if you will get a problem NOBODY is not be able to help you. you see yourself - people constantly ask to help, but there are NOT the effective suggestion. that is because they uses unknown PCB layot or do PCB at marrowbones.

Generaly i agree with you, but the major problem is not in software, the major problem is in knowlage from electronic becayse DIYer here are not electronic expert.
Converting some devices pcb from thru hole to SMD is peace of cake.
I didn't planned to asking someone for help at all.
Thru hole electronic will become praistoric for couple years
btw its alredy become
Generaly good pcb software is only what peopple need.
I see a lot of peopple here usin Sprint Layout and it is baddddddddddddddddddddd software
praistoris software i hate sprint layout, ugly bad, worstttt!!! (modren replacement for alkoholic pencil)
I used it previously and its werry easy to make mistake in sprint layot
when i "discover" diptrace another story begin.....
LOL abouth "PCB at marrowbones" its pretty comon
Positiv 20 is medicine for that.....
kt315 you must agree with me that thru hole time passes...

Cheers
Detecto

[detecto]

[kt315]

kt315 you must agree with me that thru hole time passes...

No, I do not. SMD is not so popular as you think. I have a huge bunch of Hammerhead PCBs in SMD, Carl Moreland has a bunch of the boards for shipping too. Nobody wishes to order the SMD. Although I plan redesign Bounty Hunter IV, it is SMD board. nice schematic with a potential, IMO.

[jap]

I'm with you Kt315 in this direction because SMD needs great skill to be installed by hand , because this technique needs to be programmed machines and high efficiency in the work , and most of the collecting projects do not have these skills making them collecting any project difficult.
best time
j.

[Jose]

Hello to All
Schemes always discussed, but rarely PCB design.
Proper PCB layout is fundamenrtal if desired good performance of the MD.
A PCB incorrect, is the cause of noise affecting the sensitivity and stability.
In some cases, I perform GND bridges on the lines and negartivas and positive to improve the performance of the DP.
I'm thinking about my next DP with single-sided PCB, but the use of double-sided PCB. In the upper panel would conduct the bridges for the GND.
Hope it works, seen something similar in the Clone PCB PI.
Japanese, good to see you around here!.
regards

[kt315]

revised

[ApBerg]

Hello Kt315,

Thanks for nice schematic ! and al your other info..

Best regards.

Ap

[jap]

HI jose
For the design - you are to use any of a PCB design programe Professionally and this one is enough - for the next DP project tried to PIM-2 DELTA DIGITAL it is beautiful - for any project you can do to isolate use a full sheet of copper From under pcb equivalent of the pcb plate connected with any of the bipolar{-,+} battery.
jose Thanks.
best time
j.