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hi for all.I've re-made the Delta Pulse and worked this time, but it detect only at 5cm. I've examined all diodes and transistors and capacitors are all good .Does anyone have an idea what is the problem here?please help me.thankyou
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1. coil size?
2. target masse/size?Comment
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thank you kt315.my coil is 36cm diameter . 32turns 0.5mm which measure 3.4 ohms dc resistance.damping resistor:680ohm 1watt frequency 140hz.bottle iron detected at 5cm very poor detection
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set MAIN DELAY on minimum, 40us. set PULSE WIDTH in middle pos approx 200-250us. play SENS near 7-8 position and if you can set more do more.Comment
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many thanks kt315.just i have a question :when i measure the output at pin 6 of lf357 i get 1.2volt.Do you think it is the right voltage?thank you in advanceComment
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yes, it is, in relation to GROUND (EARTH) of schematic DA4 pin 1 you must see approx 0 voltage on the output.Comment
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thank you for your answer.Comment
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I've made several attempts to adjust it but no result I tried setting the knob of MAIN DELAY with different positions I could get the maximum distance was 10 cm .please can you help me?Comment
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ok. i took a look... i see turkish (trash?) board i do not have relation to.
i bring a responsibility only for my boards for my job and do not follow aliens' clones' boards wherearound.
imho you must ask this guy author directly -- take a look on his comment here under cast
https://www.youtube.com/watch?v=sOwD...re=em-comments
Teknoloji Ekibi22 hours ago
Hi,Good job!. If you need any information, I can help to you via following link.http://www.teknolojiekibi.com/yeni/index.phpComment
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hi for all. i have built a new dp butThe device emit a continuous beats i adjust all the potentiometer at zero But they stay the same.please help me.thank you in advance
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8. Set pots in pre-set position:
- DEPTH – min, at left side, counter-clockwise
- DISC – min, at left,counter-clockwise
- GEB – middle
- SENS – middle
- T/HOLD – middleComment
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thank you mr k315 .Comment
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kt - I bought the pulse/sniffer bare board from you and have just started building it.
A question I have is for R39 bom calls for 1k resistor but board says 10k - which is it?
Also r40 bom calls for 12k resistor but board says 10k - which is correct?
Thanx
Jezz
LOL..... again.... (((((((((((((((((((((
look on this pic
http://www.geotech1.com/forums/album...chmentid=40452Comment
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