Delta Pulse

[calebsone]

coil if possible

So I'm done building and don't want just the 1x1m coil so I have some 30g wire and a 32 cm housing what do you think as for turns I tried the calculator and it told me a high number of turns like 200 something the inside diameter is 29..210cm if you think of a better way let me know please or if it will be that high with that wire.or maybe you can suggest a better way thanks

[kt315]

second lesson. how to make right shielding of a connector in housing. take a wire, this has to be a bald ordinary wire, wind around the connector and solder to pins going to +E of PCB.

[chafik]

hi pigeon if you wont change you need to know the data sheet here you will see some information about 1n4148

http://en.wikipedia.org/wiki/1N4148

[kt315]

with PRIMARY STROBE DELAY WIDTH 5...10...15...20 or, like in DP 40 MICROseconds, your ultra fast diode speed 10...20...50...100 NANOseconds does NOTHING,
no deep sense. leave this idea... not complicate the essence of things according to the principle of Occam's Razor.

[pigeon]

diodes ultra fast recovery

hi all

is that I can change the two diode 3 and 4 1n4148 diodes in delta pulse with ultra fast recovery?

thank you

best time

[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

[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

[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.

[liudengyuan]

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

[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?

[kt315]

[kt315]

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

[kt315]

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.

[peman]

Hi I wanted the latest version of Pulse Delta changes