Delta Pulse

[kt315]

I'm ready to get rid of times in the preparation of the program part of the function, do you think you can do?

you are even not first and not last to direct DP on micro. nothing new for me in this matter. I HAD seen those schematics BATCH:
- Tracker PI
- Koshej-4I, 5I,5 IM
- Skif PI
- Stalker PI
- Clone PI
NOTHING OF NEW! every DIY author did delete parts from DP thinking those are 'not so important, unwanted'*. still there is not in these detectors so discrimination like any VLF gives. DP3? do you have access to free HEX? NOT. if you want PI with disc why do you not take QED schematic? DP is not so good for advantage development but good for LEARNING of PI principle, good itself. so you only IMHO go by a way of turkish man that made DP-2, then DP-3. again - nothing new here!
simply copy DP-3 and you will get what you want and mean. I hope your HEX will be free =)

*-

I have disconnected the manifold T2 in my DP, (open collector) that allows a smoother delay control.

[liudengyuan]

I will not be used for any commercial purpose, but I think DP progress, it is more stable, better depth, and easier to operate, which is the meaning of dreams and DIY, if blindly copy, we always running in place

[Jose]

I will not be used for any commercial purpose, but I think DP progress, it is more stable, better depth, and easier to operate, which is the meaning of dreams and DIY, if blindly copy, we always running in place

Sorry my mistake.
For the particular case of Delta Pulse, another 80 shows us the beginning of the cycle timer job.
This pulse is used according to my poor understanding, to reset the operational amplifiers.
Ended 80 us pulse, the pulse begins TX.
Apologies for the error.
Jose

[liudengyuan]

Hello, I'm programming, I think TR4 fixed delay time, delay time will ask how much non-ferrous good results,

[peman]

Hello, I'm programming, I think TR4 fixed delay time, delay time will ask how much non-ferrous good results,

Hi, thank page was last modified delta pulse which

[peman]

Hi I wanted the latest version of Pulse Delta changes

[Jose]

Hello, I'm programming, I think TR4 fixed delay time, delay time will ask how much non-ferrous good results,

I do not understand the question.
The minimum delay in the DP , is around 30 or 35 us . and adjusted with P1 50K and associated components , R7 and C4 .
This is not good for non- ferrous metals, which require less time delay .
However, you can change the time base to work with delays of up to 17 or 18 us , because the design of the front preamplifier stage , does not allow fast responses .
The DP was not designed for small objects and fast driving,
But 17 or 18 us , it's pretty good for coins, but not for the small gold.
The advantage of DP is its high sensitivity , but is slow to respond, is fixed in part, by increasing the frequency of transmission TX .
DP Another advantage is that it is less sensitive to ambient noise , unlike what is commonly said .
Just compare the DP with other detectors in the same environment , where you can check which other detectors of similar sensitivity are more susceptible to noise.

[kt315]

Hi I wanted the latest version of Pulse Delta changes

[kt315]

testing with micro-pinpointer coil, taken erasing head from videotaper. a target is a coin 5 kopeek of USSR.

[kt315]

[kt315]

FOR IRAN. what electric net standart values in your country? what frequency? what AC voltage?

for ANY COIL a frequency (PPS) of Delta Pulse is 100 Hz for countries of xUSSR, 120 Hz for USA. you can tune and 300PPS, this is on your choice,
but you DO NOT GET MORE DEPTH, only battery reserve would be LESS in 300 : 100 = 3 THREE TIMES LESS
for example, with 100PPS a time of your digging in field is 3 hours. then with 300PPS you have a job time 3 : (300 : 100) = 1 hour, ONE HOUR.
with 600PPS you have a job time 3 : (600 : 100) = 0,5 hour, 30 MINUTES.
with 6000PPS you have a job time 3 : (6000 : 100) = 0,05 hour, 3 MINUTES.

IS IT OK FOR YOU OR NOT?????? had i told you ALL your freq choice IN CLEAR FORM OR NOT?

[liudengyuan]

Two diodes VD8 and ask what role VD9 KT315, delta pulse, they can not do

[kt315]

Two diodes VD8 and ask what role VD9 KT315, delta pulse, they can not do

my name is not Eric Foster to tell you other good stories about electronics. that is first.
second. VD8 and VD9 do necessary shift of DC level in SAT part, for right work of SAT, DA5. this is only my subjective opinion.
if you are not agree with it I am ready to hear your opinion.

[chafik]

hello kt315 i very interested about picture for measurement of all test point with oscilloscope with target inside coil and without it for lf357 output

[mak22]

Hi mak22 did you make. pcb It work well greetings

greetings LIEKWANG
make a pcb Delta Pulse 2 but only the sound continuously does not detect at all against metal