Kobol Expander I Calibration Procedure?

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krainov
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Kobol Expander I Calibration Procedure?

Post by krainov » Mon Jul 02, 2018 10:32 am

Hello!
Anyone can share the Kobol Expander I Calibration Procedure?
A have almost complete the VCOs and Shapers sections

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tobb
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Post by tobb » Mon Jul 02, 2018 11:31 am

that is very simple,there is a v/oct trimmer and freq offset to match the manual freq. between the two vco's.

v/oct trimming is like you have to do on every v/oct vco..

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The oscilloscope capture of one of the Shapers

Post by krainov » Tue Jul 03, 2018 3:15 am

The oscilloscope capture of one of the Shapers
https://drive.google.com/open?id=1eY7wr ... nbf0k5yds_
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mOBiTh
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Re: Kobol Expander I Calibration Procedure?

Post by mOBiTh » Tue Jul 03, 2018 11:02 am

krainov wrote:Hello!
Anyone can share the Kobol Expander I Calibration Procedure?
A have almost complete the VCOs and Shapers sections

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Is this a clone?

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Post by krainov » Tue Jul 03, 2018 11:10 am

I clone the concept, but not the way it was build...
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Post by mOBiTh » Tue Jul 03, 2018 4:58 pm

krainov wrote:I clone the concept, but not the way it was build...
cool! what's your plan with it? will you open it up to other builders? 8-)

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Post by krainov » Wed Jul 04, 2018 7:15 am

Sure I will! When I complete with all functions check...

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Post by mOBiTh » Wed Jul 04, 2018 10:16 am

krainov wrote:Sure I will! When I complete with all functions check...
Excellent news! And looking good 8-)

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Post by tobb » Wed Jul 04, 2018 10:50 am

krainov wrote:I clone the concept, but not the way it was build...
So,your doing your own concept/circuitry and then ask on the forum to other people how to calibrate it :hmm:

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Post by krainov » Wed Jul 04, 2018 11:00 am

tobb wrote:So,your doing your own concept/circuitry and then ask on the forum to other people how to calibrate it :hmm:
I think that's a google Translate problem. Of course, I have build it using original schematics. But my PCBs differ from originals. That what wanted to say. But I got your dig right. :yay:
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Post by mOBiTh » Wed Jul 04, 2018 11:06 am

tobb wrote:
krainov wrote:I clone the concept, but not the way it was build...
So,your doing your own concept/circuitry and then ask on the forum to other people how to calibrate it :hmm:
This seems reasonable to me. If you're cloning something and don't have an original to compare to, you'd likely have to make a few guesses as to how to set things up the way originally intended (vco tracking aside obviously...)

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Post by krainov » Wed Jul 04, 2018 11:25 am

mOBiTh wrote:This seems reasonable to me. If you're cloning something and don't have an original to compare to, you'd likely have to make a few guesses as to how to set things up the way originally intended (vco tracking aside obviously...)
I know that setting up some devices sometimes turns into a headache. So I tried to ask what is so special about setting up the Kobol that I need to know. That's why service manuals exist, right? Maybe someone has already passed this road ... Or did I asked something tabooed ?
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Post by mOBiTh » Wed Jul 04, 2018 12:04 pm

krainov wrote:
mOBiTh wrote:This seems reasonable to me. If you're cloning something and don't have an original to compare to, you'd likely have to make a few guesses as to how to set things up the way originally intended (vco tracking aside obviously...)
I know that setting up some devices sometimes turns into a headache. So I tried to ask what is so special about setting up the Kobol that I need to know. That's why service manuals exist, right? Maybe someone has already passed this road ... Or did I asked something tabooed ?
Nope I think it's all good! :guinness:

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Post by krainov » Wed Jul 04, 2018 12:08 pm

mOBiTh wrote:Nope I think it's all good! :guinness:
By the way, your "Never Trust a Balkan" ... I like it
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Post by mOBiTh » Wed Jul 04, 2018 2:51 pm

krainov wrote: By the way, your "Never Trust a Balkan" ... I like it
Ha! Plenty of :guinness: :guinness: whilst making that one :hihi:

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Post by tobb » Wed Jul 04, 2018 3:32 pm

krainov wrote:
tobb wrote:So,your doing your own concept/circuitry and then ask on the forum to other people how to calibrate it :hmm:
I think that's a google Translate problem. Of course, I have build it using original schematics. But my PCBs differ from originals. That what wanted to say. But I got your dig right. :yay:
Ah,ok i get it now

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Post by efexor » Wed Jul 04, 2018 3:47 pm

Will your clone be for sale as a kit once you got it running?

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Post by krainov » Fri Jul 06, 2018 6:06 am

efexor wrote:Will your clone be for sale as a kit once you got it running?
Possibly yes!
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Post by efexor » Fri Jul 06, 2018 9:57 am

Great,looking forward to the final result.

Good luck.

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Hm3040

Post by krainov » Sat Jul 14, 2018 8:47 am

Hm2040 filter is installed on the Voice PCB2. Sounds grate...
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Post by krainov » Sat Jul 14, 2018 8:55 am

Almost done. The 2050 ads chips left to be inserted. They are on their way to Moscow
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Kobol Expander I VCOs Sync tests

Post by krainov » Mon Jul 16, 2018 3:51 am

Some quick tests on VCOs sync mode.
https://soundcloud.com/deliandiver/kobo ... er-i-tests
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Post by anto32 » Wed Sep 19, 2018 12:28 pm

Hello krainov, that's a cool project!!
If you need comparison or have questions maybe I can help with mine;
cheers

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Still can not find the time to finish the back tray...

Post by krainov » Thu Sep 20, 2018 9:29 am

The unit soundZ amazing!
But still can not find the time to finish the back tray...
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Post by mOBiTh » Thu Sep 20, 2018 2:47 pm

Looking good! Can we hear some more demos?? 8-)

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