Search found 13 matches

Hi!
I have the same problem of hum. My eurorack have two power supply, one well filtered and the other not. The hum disapperead when my filter is connected to the good one. Check your power supply an ...

The schema posted is the same shema as that of msc175. I'll try it.

Hi.
Yes of course. Have a look on my post above, click on the link and go to module menu. There is some pdf about pcb, schema for 909 and 808 building. The noise circuit for 909 is connect to clap, b ...

Hello !
Thankfully forums like this exist!
I followed the changes to the PCB and the values of certain components.
This module works perfectly for me except the noise generator and there is ...

You are right to say that.
But I first tried the original circuit and I have not got it to work properly. I do not know why. I looked ds8 demonstations on the Web and I have not the same result. The ...

the LFO switch simply takes the LFO modulation out of the circuit. The VCO pot doesn't have an effect on the LFO, only the MODE pot has..

I changed my DS7 by adding the switch on the lfo.
If I do ...

Thank you. I'll try your circuit. I tried several transistors for the ds8 noise circuit with no success. This is not my first noise circuit but the others module in my eurorack are 12 v powered. I not ...

Hello !

I checked several times components and pcb.
I also made the noise circuit on a stripboard for testing several components(741 and bc547C) and resistors values . It still does not wor ...

Hello xpmtl.
I ve seen that your shema was identical to the marc`s shema for the noise parts.
But i'm surprised to see that the load resistor is only 330 ohms!
Therefore, we can only obtain a very ...

Thank you!

Looking at the diagram of the AK47, it is clear that this is pin 1 on the potentiometer that is connected to the oscillator. Therefore, the LFO rate should vary with the frequency of vco ...

here you are, hope it helps you solve your problems

Hello all.
I realized the Ak47 and I have not got it to work properly yet.
The biggest problem comes from the noise generator.
There is a big ...

Which?

Hi. You can use 2N3904 as direct replacement.

Author	Message
Topic: Steiner Synthacon VCF
chguigoz Replies: 80 Views: 158978	Posted: Fri Sep 07, 2012 10:35 pm Subject: Steiner Synthacon VCF Forum: DIY Hardware and Software » Ken Stone designs - CGS
chguigoz Replies: 80 Views: 158978	Hi! I have the same problem of hum. My eurorack have two power supply, one well filtered and the other not. The hum disapperead when my filter is connected to the good one. Check your power supply an ...
Topic: Anyone built Jorg's 909 kick PCB?
chguigoz Replies: 72 Views: 86457	Posted: Mon Jul 02, 2012 10:35 pm Subject: Anyone built Jorg's 909 kick PCB? Forum: DIY Hardware and Software
chguigoz Replies: 72 Views: 86457	The schema posted is the same shema as that of msc175. I'll try it.
Topic: Anyone built Jorg's 909 kick PCB?
chguigoz Replies: 72 Views: 86457	Posted: Mon Jul 02, 2012 11:08 am Subject: Anyone built Jorg's 909 kick PCB? Forum: DIY Hardware and Software
chguigoz Replies: 72 Views: 86457	Hi. Yes of course. Have a look on my post above, click on the link and go to module menu. There is some pdf about pcb, schema for 909 and 808 building. The noise circuit for 909 is connect to clap, b ...
Topic: Anyone built Jorg's 909 kick PCB?
chguigoz Replies: 72 Views: 86457	Posted: Wed Jun 27, 2012 3:44 am Subject: Anyone built Jorg's 909 kick PCB? Forum: DIY Hardware and Software
chguigoz Replies: 72 Views: 86457	Hello ! Thankfully forums like this exist! I followed the changes to the PCB and the values of certain components. This module works perfectly for me except the noise generator and there is ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Fri Apr 06, 2012 2:52 am Subject: DS 7 clone Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	You are right to say that. But I first tried the original circuit and I have not got it to work properly. I do not know why. I looked ds8 demonstations on the Web and I have not the same result. The ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Tue Apr 03, 2012 3:35 am Subject: DS 7 clone Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	the LFO switch simply takes the LFO modulation out of the circuit. The VCO pot doesn't have an effect on the LFO, only the MODE pot has.. I changed my DS7 by adding the switch on the lfo. If I do ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Mon Apr 02, 2012 10:39 pm Subject: DS 7 clone Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	Thank you. I'll try your circuit. I tried several transistors for the ds8 noise circuit with no success. This is not my first noise circuit but the others module in my eurorack are 12 v powered. I not ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Mon Apr 02, 2012 3:56 am Subject: DS 7 clone Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	Hello ! I checked several times components and pcb. I also made the noise circuit on a stripboard for testing several components(741 and bc547C) and resistors values . It still does not wor ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Wed Mar 28, 2012 11:33 am Subject: DS 7 clone Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	Hello xpmtl. I ve seen that your shema was identical to the marc`s shema for the noise parts. But i'm surprised to see that the load resistor is only 330 ohms! Therefore, we can only obtain a very ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Wed Mar 28, 2012 4:48 am Subject: DS 7 clone Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	Thank you! Looking at the diagram of the AK47, it is clear that this is pin 1 on the potentiometer that is connected to the oscillator. Therefore, the LFO rate should vary with the frequency of vco ...
Topic: DS 7 clone
chguigoz Replies: 452 Views: 701987	Posted: Mon Mar 26, 2012 4:39 am Subject: AK47 Forum: DIY Hardware and Software
chguigoz Replies: 452 Views: 701987	here you are, hope it helps you solve your problems Hello all. I realized the Ak47 and I have not got it to work properly yet. The biggest problem comes from the noise generator. There is a big ...
Topic: Minimoog and the tis97 transistor
chguigoz Replies: 7 Views: 9393	Posted: Sat Mar 03, 2012 1:56 am Subject: Minimoog and the tis97 transistor Forum: DIY Hardware and Software
chguigoz Replies: 7 Views: 9393	Which?
Topic: Minimoog and the tis97 transistor
chguigoz Replies: 7 Views: 9393	Posted: Fri Mar 02, 2012 10:49 pm Subject: Minimoog and the tis97 transistor Forum: DIY Hardware and Software
chguigoz Replies: 7 Views: 9393	Hi. You can use 2N3904 as direct replacement.