Delta Pulse

[Qiaozhi]

Hi kt....What does QED stand for ??? i never knew minelab monitor this forum...i suppose they think they are the pinnacle of detector technology !!!!! i only wondered if some of these machines from bulgaria use the eric foster idea of a second later sample for iron and larger items ???

QED stands for the Latin: Quod Erat Demonstrandum.
In English: "Which is what had to be proven".

Or it could be the name of a metal detector design that caused a lot of controversy ..... but it's best not to stir that up again.

[daverave]

Hi kt....What does QED stand for ??? i never knew minelab monitor this forum...i suppose they think they are the pinnacle of detector technology !!!!! i only wondered if some of these machines from bulgaria use the eric foster idea of a second later sample for iron and larger items ???

[kt315]

when using discrimination module on this detector does it use a second later sample to help reject large iron and cans ???

the project QED was banned by minelab btch who constantly monitoring this forum. you know that Dave.
you will NOT see here something you very want. NEVER.

[eclipse]

It's just a fancy name for a merely an indicator of battery voltage & signal strength.

[daverave]

when using discrimination module on this detector does it use a second later sample to help reject large iron and cans ???

[liudengyuan]

Everybody is good, who can analysis at a patch of delta pulse PCB?

[liudengyuan]

So far, the best delta pulse or DIY work, I look forward to working with friends around the world, to upgrade it, make it better

[kt315]

fixed.
LF357 was soldered directly, no signal, - bad.
TL072 - bad
TL072 - bad

[kt315]

[kt315]

[kt315]

with C3 15nF and R4 10k i get 150us minimal PULSE WIDTH, so decrease R4 value to 6,2k..6,8k.
you have to get PULSE WIDTH 100us minimal and 450-500us maximal.

[kt315]

15 and 16 picoFarad

[kt315]

guys, i ask you again.
ASK YOU!
NANOFARAD is NOT PICO-FARAD!
15 nF is not 15 PICOFARAD!
15n is NANOFARADE!
15 nanofarad is 15000 picofarad.
15 picofarad is 0,015 nanofarad.

WHAT IS DIFFICULT HERE FOR YOU TO GRASP?

why you are not able to learn this sht electronics???

[jladre]

hello I would like the build his version, on single sided, did u make it?

It just give you headache..

[hectorvillic]

hello I would like the build his version, on single sided, did u make it?