Delta Pulse

[kt315]

Õìåëåë ñîëäàò, ñëåçà êàòèëàñü, õðèïåë òðîôåéíûé ïàòåôîí è íà ãðóäè åãî ñâåòèëàñü ìåäàëü çà ãîðîä Âàøèíãòîí!
Ñ ïðàçäíèêîì ÑÀ è ÂÌÔ ÑÑÑÐ!

[tuxnor]

problem

this problem occur on my goldpic3 when i try out a 74xxx4066
then it start sound like a canari and loose sound when i present some metal to it

my deltapulse have been working evry day ,,i have tested and playd with it evry day now..
what 4066 are they using..i dont know but,,sounds like a default chip
and do they use a LF357 ??

i can only find 3 persons with this problem
when i tryed a blown 4066 on my test goldpic3 ..sound does incrase
in a high pitch canary get killed
because i also blow one on goldpic and tryed a 74xxx4066,,and tested that on my goldpic3..
,,so might thats why irf740 and diode get warm ??

[tuxnor]

canari

this problem occur on my goldpic3 when i try out a 74xxx4066
then it start sound like a canari and loose sound when i present some metal to it

my deltapulse have been working evry day ,,i have tested and playd with it evry day now..
what 4066 are they using..i dont know but,,sounds like a default chip
and do they use a LF357 ??

[kt315]

The list of ho face the same problem problem is increase :

http://www.geotech1.com/forums/showpost.php?p=101530&postcount=920

http://www.geotech1.com/forums/showpost.php?p=105274&postcount=982

http://www.geotech1.com/forums/showpost.php?p=106052&postcount=1003

http://www.geotech1.com/forums/showpost.php?p=106599&postcount=1022

http://www.geotech1.com/forums/showpost.php?p=106866&postcount=1027

http://www.geotech1.com/forums/showpost.php?p=106481&postcount=1018

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[tuxnor]

dualside pcb

I totally felt in love with Deltapulse singelside ,and i would like to have its child.
the smaller dualside pcb.

ANYONE who can make me a good doubleside pcb and sell me,
seems like none here in sweden can or will make it with me.

i got some LF 357 for a bonus

well then it will be a china child..LOL

http://www.alibaba.com/product-gs/268812938/PCB_making.html

[SIBI]

upss Not C2, but C3

[tuxnor]

pcb

My pcb was made at http://rfelektronik.se/ he got a english site also.
also this company make singel orders on pcb`s

http://pcbmanu.com/

shipping worldwide

[tuxnor]

test..

i used mylar cap for 1.5 nf c4,c5.,c6 . cheramic plate cap for C17 47pF and c13 15pf.

All other caps is poly ,,for me Wima 100nf MKS2 caps worked good here

new battery and gave it 12v today,,tested and play with it this eavning,,yes its stabil and sensitive

i used 100 ohm resistor for volume untill i get my hands on a 100ohm pot.

all resistors used is 1% and not the cheapest
Power on for 15 minute .nothing get warm.nothing smells xi xi..and stabile

i used cd4538bcn and cd4066be , Lf357 , tl062 and (ne556n instead of lm556)
its super sensitive...0.6w for 680r by the irf740 and 2.2k 1w for paralell bobin coil
tested in 30 min now ..seems to be better and better nothing is heating and its stabil.

i had to use a 100ohm resistor for volume control,,my 100ohm new new pot was bad and cheap
but now i know i can buy better quality potmeters to it.

so if you dont wanna make a coil..detectorpro`s pulse bob works great with delta pulse.
all other pulse detectors ive have tryed this coil..went out no good.
.but at last that coil come to use
Detector turned out to be just great..Thanks to designer on singelside pcb delta pulse... i love it


sorry for bad pictures...but thats is all my i-phone can do..no good cam
Adding a ociliscope to deltapulse ..lol
easy to build
www.jyetech.com
and they are using components made in taiwan
like in moast of your electronicks,,components made in japan taiwan and china anyway

[tuxnor]

working yesss

that picture was with bad battery..putted on new and it works great..
yes eaven with old batt..nothing gets warm and its stabil..
i am a happy man now...i love this deltapulse...

[tuxnor]

I did want to photoreport you new DP test at lake, but camera of my friend seems was been broken
DP was working very stable after long storing! there was very hard thing on lake bottom we was not able rise up

Hey you got same car as i have..my is red to..a volvo v40 1998 2.0 ?
i made my deltapulse singelsided pcb..and it works great..i use a detectorpro headhunter coil..its 1200 uh and 8 ohm..
can you sell me a dualside pcb ? i would like to build a dualside pcb
in return i can also provide a LF357 i got several(new) orderd them from factory in china..
or ivonic can you provide me a dualside pcb..looks great..Thanks to all in this forum..i made my deltapulse with susess

[SIBI]

i made some quick measurement with my scope (child toy ) and i have diferent timming diagram, than posted here. I have the latest schematics without fast diode. T2 was over 100uS and T3 only +- from 80uS to 300uS. I change C1 for 15nF and C2 for 22nF. T2 goes down to about 80Us and T3 to 100 - 500 uS. I must borrow better scope Now, a paint spray in 1 meter

[kt315]

I did want to photoreport you new DP test at lake, but camera of my friend seems was been broken
DP was working very stable after long storing! there was very hard thing on lake bottom we was not able rise up

[apocalypto]

increasing

The list of ho face the same problem problem is increase :

http://www.geotech1.com/forums/showpost.php?p=101530&postcount=920

http://www.geotech1.com/forums/showpost.php?p=105274&postcount=982

http://www.geotech1.com/forums/showpost.php?p=106052&postcount=1003

http://www.geotech1.com/forums/showpost.php?p=106599&postcount=1022

http://www.geotech1.com/forums/showpost.php?p=106866&postcount=1027

http://www.geotech1.com/forums/showpost.php?p=106481&postcount=1018

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[che]

Can I get help in this forum
I built this circuit but did not work
it emit a continued sound if i push reset the sound is off and when i wl'd tunning trshold potentiometer the continued sound return again.
Then i adjust them according to schema sent by KT 315
But noticed that the voltage has become a 5 volt on the capacitor 10000micfarad
There is heat on his diode and transistor irf740
what is new problem
What to do in this case?!!
Would one assistance?!

[Hesamavr]

aft is right. there are not differencies. the schematic is clear, oldie first one from Bulgarian is also clear. use o-scope diagram, it is enough. note - there are NOT TUNING POTS, except for frequency.

I can read only 0.3V ac (120KHz), and 5.1V dc on Mosfet gate. it seems that it is OFF, but in successful circuits, they have heat-sink, but in my circuit it is cooler than room temperature.

other signals in circuit, based on your post were correct.