Delta Pulse

[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

[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.

[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]

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.

[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

[Silver Dollar]

Well using this calculator;
http://www.geotech1.com/forums/showt...oil-Calculator

You need between 10 - 20 loops. What mh value were you looking for?

[kt315]

uH, MICRO Henry. NOT MILLI- GUYS, NOT MILLI -! 350-400 uH.
22(+2) is OK.

[kt315]

[Silver Dollar]

Why do they both start with "M" it's confusing. Why not Ulihenrys?

[liudengyuan]

Hello everyone, who did DP2 it?

[g.s]

Good evening kt315 Can you tell me if you remove The schematic YOU I show choris if this will work the detector? and what impact will I have ?...
THANK YOU reply and I always find here..

[kt315]

good time, GS. I did not test DP without this part but I think DP will work certainly also good. though you will fill some neccessity to punch RESET more often.

kind regards

[mohandes]

good time, GS. I did not test DP without this part but I think DP will work certainly also good. though you will fill some neccessity to punch RESET more often.

kind regards

thanks Kt315
can you say me function this part and How it works ?
or any body here can explain ?

[kt315]

had answered many times... something like a protection from overloading of preamp part - on very big targets near coil occasional (rare case but its possible!). working such way. if a RX signal gains to some level this circuit turns on and moves out samples strobes both in a range with more low amplitude - ie at right side of 'delta' pulse.this part is effective and wooks good automatically. solder components in my board and forget about this part.

KIND REGARDS TO ALL DELTAPULSERS

[kt315]

1. put DVD-ROM you got with the board together in your DVD drive.
2. open folder #coil_calculator_soft. you have to see a diggest of all programms of coil calculator.
3. install programms or start them on DVD-ROM.
4. enjoy.