Delta Pulse

[kt315]

hi Mohandes, if your pcb working stabile you do not need tantalums. I add tantalums because people have to get some experience in soldering
of smd's. this is useful experience I hope.

[calebsone]

On the mod you posted KT should I just add the cap and just jump on the board you sent or is that for a board that's homemade

[kt315]

I suggest to make the mod at end when the board would be full tested and working. on your choice... DP will work without the mod too.
yes, same board you got. to add a jumper on back side and the cap on top side to pins of the IC.

[calebsone]

OK so I get it working first and if the mod seems like something I could use then I'll try. By the way that DVD is amazing.

[kt315]

yes. at these pics as the mod made on my pcb in final result.

[calebsone]

Seems simple enough first though got to make it without big mistakes.

[mohandes]

yes. at these pics as the mod made on my pcb in final result.

[ATTACH]28867[/ATTACH]
[ATTACH]28868[/ATTACH]
[ATTACH]28869[/ATTACH]

hi
i add 22mikro like you , but LED red always on next burn the 1A fuse and VD9 and VD8 .
regards

[kt315]

hi
i add 22mikro like you , but LED red always on next burn the 1A fuse and VD9 and VD8 .
regards

you have to add all links, a resistor 100k and electrolytic capacitor. above I mean only my design, it has already some links, your turkish one has nothing.
you have to consider this factor.

[mohandes]

you have to add all links, a resistor 100k and electrolytic capacitor. above I mean only my design, it has already some links, your turkish one has nothing.
you have to consider this factor.

ok
i try tomorrow . if you can certain in your schematic
reagrds

[medj]

I have a problem with Delta
Every good cut
But does not reveal anything
Please who has planned properly or has some changes that will help me in the Reformed
Any points that are measured in the device to make sure it's good
Of helped me, I would be grateful to him
I read in every forum
But the device did not work with me please help
Emile [email protected]
I will return after two days
I can not buy any of your devices, because I do not earn a living on barely
Since almost a year and I'm doing my industry this device, but in recent Dokdok the voices and whistling only
In the latter, and thank you to those who participate in this forum

http://im45.gulfup.com/ZEO6W.jpg

[calebsone]

So instead of using the lf357 what would happen if I used a lm308 or the 5534 and can I use sockets for the op amp and just test I have like 15 308s and 10 5534s but my lf357 s won't be here for 2 weeks. Thanks if anyone knows.

[kt315]

no no. in DP used only JFET, BiFET,..FET, type opamps with high, not less than, 50V/us, slew rate/speed. I have given part list.
please do not try NE5534 LM308 etc because its will not working. for testing you can use TL081, it stay now on my pcb, I also have not LF357 at the moment and am in finding.

[calebsone]

Good I asked I just wondered hopefully my lf357s won't take to long and I hope they are real KT I did see the site taydaelectronics has lf356 if that helps you if not I'll let you know when mine come and I'll send 1 for you.

[Orbit]

Try it lf 411!

[mohandes]

Try it lf 411!

which is more fast , lf357 or lf411 ?