Search found 23 matches

Great!
Thanks once more for the answer and the improving modification.

After some afternoon testing, I finally had to install the input resistors. Looks like the AC coupling caps would not discharge without those, and the AC mode wasn't working correctly.
I've attached ...

Thank you so much for this!

I have been using the YuSynth Modulator for some time now, and when using the DC inputs I've always suspected that something was wrong. I did experience the DC offsets. ...

Yes, I used the 3 bigger layouts containing several voices, not the modular ones.

Thanks for the answer.

I do understand. But that would take 2x12 op-amps, and there's no much space left inside my case, specially with all the wire mess. 24 op-amps would be 6 quad op-amps. That w ...

Thanks for sharing this! I have used it on my clone and it works perfect.
I omitted 2 resistors and the diode and added a trimpot to get the 5V. I also used one of the 4053 switches to drive a LED.
...

I used a 2N5457 on my YuSynth VCO and it seems to work fine.

how does it sound?
do you get signal or cv bleed?

i also have some spare ba6110s and looking for a tight vca for my quadraphonc mixer module. i was going to use 3080 core ones but i might change i ...

Hi,

Here's a PCB I'd like to share with you. It's one cloned VCA from the 130 module from the Roland System-100M. Rare parts that you will need are one BA6110 and one SK30A N-Channel FET transistor ...

By grounding I mean normalizing to ground that is the switch lug of the jack socket is connected to ground such that when no jack is connected the input is set to 0V, but when one insert a jack the ...

Hi,

I built the
*R8, R12, R17, R29, R33 and R38 are 50k, in fact the PCB has been designed such that you can either use a single 50k 1% resistor or two 100k 1% resistors connected in parallel.
...

If I remeber correctly, when I calibrated the VCA, I connected the input to
one channel of the oscilloscope and the output to the other channel and
overimpose the two signals to do the calibration, ...

Hi,

So I built the [url=http://yusynth.net/Modular/EN/VCA/index.html]Yusynth VCA some days ago and I like it so far. But I found the output was inverted.

After checking the schematics vs. the PC ...

I'd also be interested on 1 PCB... If I am not too late.
Thanks!

After building the module I experienced the same problem with some input signals.
Doing this mod seems to have solved the problem.
Thank you both!

I'd get one too.
Thanks.

This looks great, I'd be interested on a PCB too.
Thanks!

Thanks!

Hi,

So I found a Motorola MC1455. By looking at the datasheet I can't make clear if this is a good replacement for the 7555...
Can somebody tell if it is a CMOS version or a normal 555?

Thanks!

Well, that really solved my doubts!
Thank you very much again.

Hi,

So I am going to try to build this modulator and after reading this topic I do still have a question about the AC-DC inputs.
I think I can quite understand the use of both AC and DC, but can I ...

Hi,

Thanks for your answer.
After spending some time playing with the ADSR, I have another question reganding the way it acts:

Let's say you trigger the ADSR, let it reach the Sustain state an ...

Hi,

I've been protoboarding the [url=http://yusynth.net/Modular/EN/ADSR/index.html]YuSynth ADSR this morning, following the schematics. When finished, I found it was not working: it didn't got any ...

Author	Message
Topic: Balanced Modulator troubles
vcfool Replies: 27 Views: 20507	Posted: Fri Mar 02, 2012 7:07 am Subject: Balanced Modulator troubles Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 27 Views: 20507	Great! Thanks once more for the answer and the improving modification.
Topic: Balanced Modulator troubles
vcfool Replies: 27 Views: 20507	Posted: Thu Mar 01, 2012 6:45 pm Subject: Balanced Modulator troubles Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 27 Views: 20507	After some afternoon testing, I finally had to install the input resistors. Looks like the AC coupling caps would not discharge without those, and the AC mode wasn't working correctly. I've attached ...
Topic: Balanced Modulator troubles
vcfool Replies: 27 Views: 20507	Posted: Thu Mar 01, 2012 9:40 am Subject: Balanced Modulator troubles Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 27 Views: 20507	Thank you so much for this! I have been using the YuSynth Modulator for some time now, and when using the DC inputs I've always suspected that something was wrong. I did experience the DC offsets. ...
Topic: Adding CV to 808 accent circuit
vcfool Replies: 62 Views: 34380	Posted: Wed Nov 04, 2009 10:27 am Subject: Adding CV to 808 accent circuit Forum: DIY Hardware and Software
vcfool Replies: 62 Views: 34380	Yes, I used the 3 bigger layouts containing several voices, not the modular ones.
Topic: Adding CV to 808 accent circuit
vcfool Replies: 62 Views: 34380	Posted: Wed Nov 04, 2009 9:29 am Subject: Adding CV to 808 accent circuit Forum: DIY Hardware and Software
vcfool Replies: 62 Views: 34380	Thanks for the answer. I do understand. But that would take 2x12 op-amps, and there's no much space left inside my case, specially with all the wire mess. 24 op-amps would be 6 quad op-amps. That w ...
Topic: Adding CV to 808 accent circuit
vcfool Replies: 62 Views: 34380	Posted: Tue Nov 03, 2009 1:54 am Subject: Adding CV to 808 accent circuit Forum: DIY Hardware and Software
vcfool Replies: 62 Views: 34380	Thanks for sharing this! I have used it on my clone and it works perfect. I omitted 2 resistors and the diode and added a trimpot to get the 5V. I also used one of the 4053 switches to drive a LED. ...
Topic: j111/j112 replacement
vcfool Replies: 6 Views: 27906	Posted: Sat Aug 01, 2009 5:35 am Subject: j111/j112 replacement Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 6 Views: 27906	I used a 2N5457 on my YuSynth VCO and it seems to work fine.
Topic: Roland 130 VCA PCB Design
vcfool Replies: 9 Views: 23262	Posted: Sun Apr 12, 2009 7:02 pm Subject: Roland 130 VCA PCB Design Forum: DIY Hardware and Software » The layout factory
vcfool Replies: 9 Views: 23262	how does it sound? do you get signal or cv bleed? i also have some spare ba6110s and looking for a tight vca for my quadraphonc mixer module. i was going to use 3080 core ones but i might change i ...
Topic: Roland 130 VCA PCB Design
vcfool Replies: 9 Views: 23262	Posted: Tue Apr 07, 2009 7:27 am Subject: Roland 130 VCA PCB Design Subject description: Clone for a single 130 VCA from the Roland System 100M Forum: DIY Hardware and Software » The layout factory
vcfool Replies: 9 Views: 23262	Hi, Here's a PCB I'd like to share with you. It's one cloned VCA from the 130 module from the Roland System-100M. Rare parts that you will need are one BA6110 and one SK30A N-Channel FET transistor ...
Topic: Dual Min/Max Issues
vcfool Replies: 2 Views: 3574	Posted: Mon Apr 06, 2009 5:25 am Subject: Re: Dual Min/Max Issues Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 2 Views: 3574	By grounding I mean normalizing to ground that is the switch lug of the jack socket is connected to ground such that when no jack is connected the input is set to 0V, but when one insert a jack the ...
Topic: Dual Min/Max Issues
vcfool Replies: 2 Views: 3574	Posted: Sun Apr 05, 2009 4:32 pm Subject: Dual Min/Max Issues Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 2 Views: 3574	Hi, I built the *R8, R12, R17, R29, R33 and R38 are 50k, in fact the PCB has been designed such that you can either use a single 50k 1% resistor or two 100k 1% resistors connected in parallel. ...
Topic: Inverted Output on the VCA PCB
vcfool Replies: 8 Views: 7234	Posted: Thu Apr 02, 2009 7:25 am Subject: Inverted Output on the VCA PCB Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 8 Views: 7234	If I remeber correctly, when I calibrated the VCA, I connected the input to one channel of the oscilloscope and the output to the other channel and overimpose the two signals to do the calibration, ...
Topic: Inverted Output on the VCA PCB
vcfool Replies: 8 Views: 7234	Posted: Mon Mar 30, 2009 6:36 pm Subject: Inverted Output on the VCA PCB Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 8 Views: 7234	Hi, So I built the [url=http://yusynth.net/Modular/EN/VCA/index.html]Yusynth VCA some days ago and I like it so far. But I found the output was inverted. After checking the schematics vs. the PC ...
Topic: Delta VCF pcbs
vcfool Replies: 94 Views: 62303	Posted: Mon Mar 16, 2009 4:27 am Subject: Delta VCF pcbs Forum: DIY Hardware and Software
vcfool Replies: 94 Views: 62303	I'd also be interested on 1 PCB... If I am not too late. Thanks!
Topic: Pulse-Delay Modification
vcfool Replies: 5 Views: 5734	Posted: Thu Mar 12, 2009 8:50 am Subject: Pulse-Delay Modification Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 5 Views: 5734	After building the module I experienced the same problem with some input signals. Doing this mod seems to have solved the problem. Thank you both!
Topic: 2nd run of Thomas Henry's SN76477 Super Controller Module
vcfool Replies: 66 Views: 44641	Posted: Wed Dec 17, 2008 2:18 pm Subject: 2nd run of Thomas Henry's SN76477 Super Controller Module Forum: DIY Hardware and Software » Thomas Henry designs
vcfool Replies: 66 Views: 44641	I'd get one too. Thanks.
Topic: 3rd run of PCBs for the PS3100 Resonators & the X-panfader
vcfool Replies: 348 Views: 337814	Posted: Mon Dec 15, 2008 2:08 pm Subject: 3rd run of PCBs for the PS3100 Resonators & the X-panfader Forum: DIY Hardware and Software » fonik's place
vcfool Replies: 348 Views: 337814	This looks great, I'd be interested on a PCB too. Thanks!
Topic: ADSR schematics do not match the PCB ??
vcfool Replies: 14 Views: 11178	Posted: Tue Nov 04, 2008 9:15 am Subject: ADSR schematics do not match the PCB ?? Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 14 Views: 11178	Thanks!
Topic: ADSR schematics do not match the PCB ??
vcfool Replies: 14 Views: 11178	Posted: Mon Nov 03, 2008 2:33 pm Subject: ADSR schematics do not match the PCB ?? Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 14 Views: 11178	Hi, So I found a Motorola MC1455. By looking at the datasheet I can't make clear if this is a good replacement for the 7555... Can somebody tell if it is a CMOS version or a normal 555? Thanks!
Topic: RINGMOD WITH BOTH DC INPUTS
vcfool Replies: 12 Views: 11005	Posted: Wed Oct 29, 2008 12:00 pm Subject: RINGMOD WITH BOTH DC INPUTS Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 12 Views: 11005	Well, that really solved my doubts! Thank you very much again.
Topic: RINGMOD WITH BOTH DC INPUTS
vcfool Replies: 12 Views: 11005	Posted: Wed Oct 29, 2008 11:23 am Subject: RINGMOD WITH BOTH DC INPUTS Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 12 Views: 11005	Hi, So I am going to try to build this modulator and after reading this topic I do still have a question about the AC-DC inputs. I think I can quite understand the use of both AC and DC, but can I ...
Topic: ADSR schematics do not match the PCB ??
vcfool Replies: 14 Views: 11178	Posted: Tue Oct 28, 2008 4:46 am Subject: ADSR schematics do not match the PCB ?? Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 14 Views: 11178	Hi, Thanks for your answer. After spending some time playing with the ADSR, I have another question reganding the way it acts: Let's say you trigger the ADSR, let it reach the Sustain state an ...
Topic: ADSR schematics do not match the PCB ??
vcfool Replies: 14 Views: 11178	Posted: Mon Oct 27, 2008 7:56 am Subject: ADSR schematics do not match the PCB ?? Forum: DIY Hardware and Software » YuSynth
vcfool Replies: 14 Views: 11178	Hi, I've been protoboarding the [url=http://yusynth.net/Modular/EN/ADSR/index.html]YuSynth ADSR this morning, following the schematics. When finished, I found it was not working: it didn't got any ...