Delta Pulse

[kt315]

can you digitally shoot all markings on the capasitors C4 and C5? is not clear from your comment what you did stay on your PCB really.

[Mullihaka]

TR4 / TR5 versus component values

Hi,

I have checked the whole Delpa Pulse forum thru several times, but couldn't find what I was looking for. The timing of TR4 and TR5 in my DP are different form the often seen timing diagram. Values of my DP are in large numbers in the diagram below. I use 4528s instead of 4538. I believe they are the same, the 4538 being just a bit more precise. The data sheet of 4528 gives formula t = R*C*0.3, where t is pulse width [s], R is resistance [ohm] and C is capacitance [F]. When I compare the values from the formula to measured ones, they are of same magnitude. So, I believe the component values in the picture below match with the data sheet formula.

What would be the values for resistors and capacitors around the two 4538s to get the timings like in the diagram? Yes, I could find them myself. I'm just wondering if I have missed the correct component list or if the timing diagram is of a DP with "tuned" performance.

All hints appreciated.

[kt315]

good day to all. I am realizing the deltapulse. is possible to replace LF357 with LM318? Thanks for the answers
excuse my english

no, it is not. you must use only JFET input op amps in this schematic. try TL081 it works of me.

[kt315]

Cornet 7250 (not so new model though)

http://rapidshare.de/files/40237707/cornet7250.zip.html

[amtech2005]

Delta Pulse

Hello , KT315 . I like the Condor 3 the best !!!!!!!! Thank-You for posting all these photos , they look like very good machines !!!! And I am sure they cost much less than the "Overpriced Nexus"........Bye..........Eugene

[kt315]

AKA CONDOR 7252

[kt315]

AKA PILGRIM 7246

[kt315]

AKA CONDOR-3

[kt315]

VECTOR AKA 7262M

[kt315]

VECTOR - need your comment

[kt315]

sorry, I have not amount of such money. this question could be not directed to me. I am not banker or financial speculiator to have the $$$ money.
Nexus is absoliutely out my sphere of interests. I am not interested in this bulgarian commercial DIY (only foolished a people). at market there are GREAT SUPERIOR detectors like to XLT DFX EXP GARRETT 2500 etc. and you offer me discuss this full squalor? you see i I do not offer you to comment russian AKA's CONDOR, VECTOR detectors etc. that I could be off. all of them has LCD and advanced VDI.

yours

[amtech2005]

Delta Pulse

KT315 , Sorry I had to make 3 posts . But something timed out , or my computer internet is not right . It is never my fault . Anyway , to build a Delta Pulse might be $100.00 , that includes a nice case and all new good parts , AND you will have , a Great Detector !!!! But what can you buy for $3495.00 And it does not have a target I.d. or a LCD screen ???? I saw the used "for sale" ad today on a Nexus "ultimate" for $1400.00 , so then I checked the price for a new one, wow, . I wonder , is it REALLY that good ?? I am trying to look for some field tests in the ground or what I call "DIRT TESTS"...........Eugene

[roberts]

"...poshiol ty nahui.."

This is what i got in pm from KT315!

I dont need to translate. But this is obvious proof how man without any elelmentar culture,moral and ethic talk when does not have arguments.
Thank you KT315, you made it more easy!

[amtech2005]

Delta Pulse

See images , two different search coils change frequency , like Minelab ?? Eugene

[amtech2005]

Delta Pulse

KT315 , I have a question for you !! Have you ever seen a Metal detector so expensive as this one , and it only has a ferrous / non-ferrous I.D. meter ??? It sells for $3495. pounds ???? Unbelievable........Is your Delta Pulse just as deep ???? Kt315 , please make a product comparison or opinion !!! . This one is selling used for $1400.00 in the U.S. here , photo's are next post...............Just need your help and opinion's, or someone else can give us some information on this Nexus "Ultimate" machine...............Thank-You..........Eugene