Delta Pulse

[1843]

Thank you, Geo!

Hi Geo,

I want to build a 60cm rounded coil for DP, Tell me the information for it,please.

Regards
Aban

[nelson]

Delta pulse MD

Hello Treiti or anyone that can help please.
Is possible that you send to me the DP full file placed on http://www.treiti.times.lv/shem/deltapi_v1_treiti.zip , because i can get it from that link address.
My email is [email protected]
In advance many thanks
Best regards
Nelson

[Geo]

CD4538

Hi Aban and 1843. I looked at technical data of CD4538 and NC14538. There is a little difference at pin 5 and 11 (input A and B). MC14538 has a non invert schmitt Trigger in serious that CD4538 has not. So I am not sure if you can place MC14538 istead of 4538. My opinion is to try with cd4538. If i will find a mc14538 i will test my Delta Pulse and i write you
Regards

[nelson]

Delta pulse sprint layout pcb

Here is the original pcb file on sprint layout format

[nelson]

Delta Pulse

Hi, i really dont know anything about the performance, i m trying to build my first delta pulse with sprint layout pcb. I compared it with mikron electronics schematics and i found some track diferences when i compared with sprint layout file. That´s the reason because i m requesting the schematics of it. I also had place the components names on the pcb, but the ones that are show on Mikron Electronics schematics.
If any one can help i ll appreciate it.
Regards
Nelson
PD: i m sending the pcb on spring layount format with the components names placed by me.

[1843]

SprintLayout Pcb

Hi kt315.
Do you have the schematics for delta pulse that you made on sprint layout pcb file. I had already made the pcb from your file on sprint layout software, but i had found some differences when i compare it with the schematics made on ISIS software.
Sorry for my english and i ll be waiting for your help
In advance many thanks.
Regards
Nelson

Hi,
I made that, but it does not work.
How should be Waveform of Tr6 and TR7?
Best regards

[nelson]

Delta Pulse schematics

Hi kt315.
Do you have the schematics for delta pulse that you made on sprint layout pcb file. I had already made the pcb from your file on sprint layout software, but i had found some differences when i compare it with the schematics made on ISIS software.
Sorry for my english and i ll be waiting for your help
In advance many thanks.
Regards
Nelson

[1843]

CD4538

Hi all,
Can I use MC14538 instead of CD4538?

Hi,
This is my question too.

U2 & U3

Hi all,
Can I use MC14538 instead of CD4538?

U2 & U3

Hi all,
Can I use MC14538 instead of CD4053?

[Geo]

But still not clear; can i use lower resistance coil than without risk to warm fet or even get it hot and blow?

"To reduce coil current, you need to add a few ohms of resistance in series with the coil."
That resistance should be resistor but high power (5w,10w) or 1/8w or simillar? Or does'nt matter?

Pulse Star II machine used with coil 2 ohm resistance and high power in it does'nt blow fet, but Delta Pulse even with 3-4ohm coil a less power blows fet?? How come? Even freqency is lower (150Hz) than at PSII...???!!!
:confused:

Hi Hawk..... You can use a low resistance coil without the risk to warm if you connect in series a resistance 2...8 Ohm. A resistor with power 2W is O.k
I tried a 2 Ohm coil with 2.7 ohm 1W resistance in series at my D.P without any problem.

[Geo]

In looking at the schematic posted in this thread, it shows +12V on the coil and -12V on the switch, so that would be 24V across the coil. However, in looking again, that doesn't make sense per the way the preamp is powered. I haven't read this whole thread, so maybe this is an error that has been discussed.

Hi. The voltage is 12V. +12 and -12v are the + and - polarity of the 12V battery.

Are coaxial the cabble betwin coil and detector?

Hi:
This is my first cuestion (title cuestion) and whats the best PI detector, is delta pulse?
and whats the best discriminator detector project? is bandido?.
thanks a lot.

Luis Miguel.

[okantex]

what is the value of current in amphers in coil for delta pulse and approximately for other detectors

[Carl-NC]

In looking at the schematic posted in this thread, it shows +12V on the coil and -12V on the switch, so that would be 24V across the coil. However, in looking again, that doesn't make sense per the way the preamp is powered. I haven't read this whole thread, so maybe this is an error that has been discussed.