Delta Pulse

[Max]

has slow Slew rate low noise is well. for preamp will be not serve.
but probably will be good for VLF's like TGS.

anyway thanks.

Uhm , yes... its slew rate is not much...

I think that instead the TLE2071 is a fair better choice than TL081 today... do you agree ???

Kind regards,
Max

[kt315]

superb! 45V/us and low noise.

[KingJL]

Uhm , yes... its slew rate is not much...

I think that instead the TLE2071 is a fair better choice than TL081 today... do you agree ???

I do not know if they are available in your part of the world, but the TI TLC07x, TLC08x are better replacements for TL07x, TL08x. Better GBW, lower Vn, lower power consumption.
Just my 2 cents!!
Regards,
J. L. King

[Max]

I do not know if they are available in your part of the world, but the TI TLC07x, TLC08x are better replacements for TL07x, TL08x. Better GBW, lower Vn, lower power consumption.
Just my 2 cents!!
Regards,
J. L. King

Hi,
of course, I have them.

But the TLE2071 is fairly better... always TI product.

Kind regards,
Max

[kt315]

thanks lots everyone.
refreshed cross referense list seems such
D4 - AD744, TLE2071, TL081, КР574УД1, К140УД23
D5 - TL082, TL072, LF353, LF412, TLE2072, TLC072, LT1057CN8
D6 - TL082, TL072, LF353, LF412, TLE2072, TLC072, LF442, LT1057CN8
D7 - TL082, TL072, LF353, LF442, TLC072, LT1057CN8, TLC272, TLC277, TLC27M2, TLC27M7, TS27M2, TLE2062, TLC2262

HH

[kt315]

new updates of schematic

[kt315]

recheck the part list.

C1 22nF
C2 1nF
C3 10nF
C4 1,5nF
C5 1,5nF
C6 1,5nF
C7 1000µF
C8 10µF
C9 100nF
C10 100nF
C11 100nF
C12 100µF
C13 15pF
C14 100nF
C15 100nF
C16 100nF polyesfer film
C17 47pF
C18 100nF polyesfer film
C19 100nF
C20 100nF
C21 10µF
C22 100nF polyesfer film
C23 100nF
C24 100nF
C25 220nF polyesfer film
C26 47nF
C27 220µF
C28 100nF
C29 100µF
C30 4700uF
C31 4700uF
C32 4700uF

D1 LM556
D2 4538
D3 4538
D4 LF357
D5 TL062
D6 TL062
D7 TL062
D8 NE555
D9 4066
D10 4066
PR1 250k
P1 50k
P2 500k
P3 20k
P4 20k
P5 10k
P6 10k

R1 470k
R2 6k8
R3 47k
R4 5k6
R5 1k* /0,5 Watt
R6 1k
R7 15k
R8 27k
R9 68k
R10 100k
R11 100k
R12 10k
R13 10k
R14 1k
R15 820
R16 12k
R17 120k
R18 120k
R19 4k7
R20 2k2
R21 47k
R22 47k
R23 4k7
R24 4k7 precise to R23
R25 4k7
R26 4k7 precise to R25
R27 4k7
R28 56k
R29 1M
R30 1M
R31 5k6
R32 330
R33 4k7
R34 22k
R35 5k6
R36 56k
R37 560
R38 10k
R39 1k
R40 12k
R41 6k8
R42 22k
R43 6k8
R44 330
R45 39
R46 2,2
R47 1k
R48 8k2
R49 1k
R50 1 Ohm /0,25 Watt

T1 IRF740
T2 BC546
T3 BC557
T4 BC546
T5 BC546
T6 BC546
T7 BC546
T8 BC546
T9 BC557
T10 BC557

VD1 1N4148
VD2 1N4148
VD3 1N4148
VD4 1N4148
VD5 1N4148
VD6 1N4148
VD7 1N4001
VD8 1N4148
VD9 1N4148
VD10 1N4148
VD11 1N4148
VD12 1N4148
VD13 1N4148
VD14 Zener 8V2
VD15 Zener 9V1
VD16 red colour LED
VD17 green colour LED

[Farhad]

I need help

Hello my name is farhad. I can't good speaking english
I need a metal detector who it have power recognise gold from other metal and rang of detection
4 meter . I made many metal detector but it not work and if worked rang of detection was 30~50 cm
now i need help you .

[Max]

Hello my name is farhad. I can't good speaking english
I need a metal detector who it have power recognise gold from other metal and rang of detection
4 meter . I made many metal detector but it not work and if worked rang of detection was 30~50 cm
now i need help you .

Hi,
not to disappoint you... but none will do.

Some can get stuff at 4meters depth, if some conditions are matched about coils, tx power, soil and , of course, target size. Example: a powerful PI with 2meters square frame can do that.

None will detect and disc all but gold at 4meters. Don't waste your money.

Kind regards,
Max

[kt315]

gold does the folks idiots (sic)
if you will get 4 meters then you can buy huge army and win all wars on the planet. you want be Alexander Macedonian or Chingiz Khan, but do not want to say it us, yeah? the crazy crazy world... a people demolish yourself

[kt315]

Dear Kt315

I built a deltapulse but it doesn't work well, i change the parts and check all items but i can't find diffrence between my deltapulse and the pcb that is in the forum , i don't know where's the problem ; is the pcb and schematics of deltapulse in forum have errors ?

please help me for finding error free pcb and schematics of DP , i'm so confiused between too many shematics and PCBs

Best regards

Alex and another folks! I NOTE AGAIN. I DO NOT ANSWER VIA PM IF YOU ASK ME 'HELP SOS AND WHERE IS THE PROBLEM'!

if you have a good schematics, good suggestions, good releases, good updates, good tracing PCBs etc. on matter we discuss- WRITE ME WITHOUT A DELAY AS SPEEDY AS YOU ONLY CAN SPEEDY VIA PM VIA E-MAIL VIA A CALL VIA WHAT YOU HAVE OF!!

your problem Alex seems you do NOT read attentionally the postings as you must read. remember! - you must PRESICELLY LINE UP R25=R26 and R23=24. with MORE THAN 1% ACCURACY!
second what you have losed out. the working frequency must be ABSOLIUTELY PRESICELLY 100 PPS. or what you have industrial frecuency multiply on TWO. if you have 60Hz than you must have 120 pps.
take ONLY poliester capacitors with minimum loses for holding ones - C16, C18, C22, C25. NOT USE CERAMIC CAPACITORS HERE!!!

HAVE A HAPPY TODAY!

[batman1972]

Help around DP

Hi Dear Kt315
How are u today?Thanks for ur guide around DP.
Have u Final Fixed PCB(for ur fixed Schematic) for DP with PDF format?
If yes pls insert into forum.
and next can u attach a LCD for DP?
thank u again and goodluck

[kt315]

Hi Dear Kt315
How are u today?Thanks for ur guide around DP.
Have u Final Fixed PCB(for ur fixed Schematic) for DP with PDF format?
If yes pls insert into forum.
and next can u attach a LCD for DP?
thank u again and goodluck

hi. fine. thanks. the PCB layout is oldie and classic in form. I got fabrician PCB from camrade Treiti (NOT FROM ABAN AND GEORGIJ. WHO ARE ONLY PROMISING TO SEND BUT NEVER DO NOT PERFORM THEIR PROMISES!).
about LCD - I am not guru in it.

have a nice day

[kt315]

enjoy. LAY file is SPRINT LAYOUT-5 of.

[amtech2005]

Delta Pulse

KT315 , Great Work on the Delta Pulse !!!! Also , I searched several months ago to see if "Elbombaci" had his Delta Pulse "LCD circuit board" schematic posted on his forum or anywhere else. No he did not , and I think he will not !!! He may be selling Delta Pulse with LCD readouts for a living . Or we would have see the Schematic posted here on Geotech Already !!!!!! It can be seen only on Utube , being tested . Elbombachi is a member of this forum , but under a different User name. Yes it would be cool to have the LCD screen , but the Delta Pulse works just as great with an analog meter ...............Thanks again KT315 ....................Eugene