Search found 20 matches

Hmm. Good idea Bence. I'll give that a try soon.

Steve

MFOS Adjustable LM317/LM337 1.5A Supply with a 12-0-12vac 20VA toroid transformer which is 0.8A for each rail. Should be heaps.

Oops. Just had a look at the power supply as I couldn't remember the ...

Sounds very similar to my issue.

No I have not solved it. I was hesitant to spend lots of time with the wiring. My unit is a little more complex as I have a Theremin and Echo Rockit in the unit.
...

thanks for that elmegil. At least I now know that there shouldn't be any bleed.

I thought that grounding could be the issue. Due to custom case I was trying to avoid having to access the board as r ...

Hi all,

I'm having a small issue with bleed coming from both envelope generators. With modulation levels to either VCOs turned down I still get a small amount of pitch modulation.

Anyone else ha ...

Howdy,

I presume you mean just a keyboard with switches for each key. You've probably already thought about this and are trying to avoid it but you might be able to salvage the keys from an old ...

howdy olledahlberg,

I would say that the quality of the pure dc coming out of a computer PSU would not be clean enough for audio and would need extra smoothing. But I'm no expert in this area. If t ...

Ok. The audio source into the filter is white noise off the Experimenters board. Firstly I adjust the resonance control which introduces the low frequency osc sound. Then I change the cut off frequenc ...

Thanks for the reply elmegil. At least people are reading.

It's an odd one as I've mentioned because both boards are doing the same thing. I'll probably go back and go through Ray's troubleshooting ...

Wow. I'm intrigued that so many people have looked at this message but nobody has replied. Even with a no idea but ....

Silly question is whether the problem is obvious that it doesn't warrant a re ...

Hi all,

I've just finished two of the MFOS SVF modules and they both have the same issue / problem.

It appears to be in the Resonance part of the circuit though it's strange that they both h ...

This will probably be no help at all. It's stating the obvious. They do not sound correct to my ears either.

That said, listening to the identical type samples on the MFOS SVF page, these also don' ...

Thanks again guys for putting me straight on the "cheaper" options.

I'll take every ones suggestions and I'll wait until closer to the time comes for construction to start as I'm still wo ...

Thanks RF

Interesting to see you have the small scope in your synth. That would be fun.

I've come across another smaller computer based scope which is the DSO Nano V2 - http://www.seeedstudio.co ...

Thanks for all the advice(es).

elmegil I think has the best advise and that's to keep an eye out on Ebay (which we do have in Oz). Just having a quick look now I've come across a
BWD OSCILLOSCO ...

Nice looking unit Ashley.

Hey thanks for the suggestions for extra modules and the size of the unit. Since posting that pic I've added the MFOS Dual VCA module after reading a thread concerning &qu ...

Hi all,

I'm embarking on a MFOS mega synth (Ultimate, Plus, etc etc) for 2013.

Something I don't have in my arsenal is an oscilliscope. Ray says you need one for the VCOs and turning the VCF so ...

Thanks for the lead ashleym.

I've attached the current version of the front panel. I'm fortunate that my part time job is in printing and I have access (no charge usually) to a flat bed printer so ...

Cheers Feifer

Hi all,

A newbie here. I've planned to create a monster modular / normalised synth using many of Ray's modules.

A question though. Ray is using odd value resistors eg. 499K. Do I need to ...

Author	Message
Topic: Soundlab MkII - eg bleed
amongstmyselves Replies: 8 Views: 6010	Posted: Thu Jun 23, 2016 4:27 pm Subject: Soundlab MkII - eg bleed Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 8 Views: 6010	Hmm. Good idea Bence. I'll give that a try soon. Steve
Topic: Soundlab MkII - eg bleed
amongstmyselves Replies: 8 Views: 6010	Posted: Wed Jun 22, 2016 6:10 pm Subject: Soundlab MkII - eg bleed Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 8 Views: 6010	MFOS Adjustable LM317/LM337 1.5A Supply with a 12-0-12vac 20VA toroid transformer which is 0.8A for each rail. Should be heaps. Oops. Just had a look at the power supply as I couldn't remember the ...
Topic: Soundlab MkII - eg bleed
amongstmyselves Replies: 8 Views: 6010	Posted: Wed Jun 22, 2016 5:16 pm Subject: Soundlab MkII - eg bleed Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 8 Views: 6010	Sounds very similar to my issue. No I have not solved it. I was hesitant to spend lots of time with the wiring. My unit is a little more complex as I have a Theremin and Echo Rockit in the unit. ...
Topic: Soundlab MkII - eg bleed
amongstmyselves Replies: 8 Views: 6010	Posted: Tue May 31, 2016 3:56 pm Subject: Soundlab MkII - eg bleed Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 8 Views: 6010	thanks for that elmegil. At least I now know that there shouldn't be any bleed. I thought that grounding could be the issue. Due to custom case I was trying to avoid having to access the board as r ...
Topic: Soundlab MkII - eg bleed
amongstmyselves Replies: 8 Views: 6010	Posted: Mon May 30, 2016 8:37 pm Subject: Soundlab MkII - eg bleed Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 8 Views: 6010	Hi all, I'm having a small issue with bleed coming from both envelope generators. With modulation levels to either VCOs turned down I still get a small amount of pitch modulation. Anyone else ha ...
Topic: keys
amongstmyselves Replies: 6 Views: 2598	Posted: Tue Jan 22, 2013 3:02 pm Subject: keys Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 6 Views: 2598	Howdy, I presume you mean just a keyboard with switches for each key. You've probably already thought about this and are trying to avoid it but you might be able to salvage the keys from an old ...
Topic: computer power supply for synth?
amongstmyselves Replies: 6 Views: 3157	Posted: Wed Jan 02, 2013 2:38 pm Subject: computer power supply for synth? Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 6 Views: 3157	howdy olledahlberg, I would say that the quality of the pure dc coming out of a computer PSU would not be clean enough for audio and would need extra smoothing. But I'm no expert in this area. If t ...
Topic: MFOS SVF Resonance Issue
amongstmyselves Replies: 5 Views: 4290	Posted: Mon Dec 31, 2012 7:41 pm Subject: MFOS SVF Resonance Issue Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 5 Views: 4290	Ok. The audio source into the filter is white noise off the Experimenters board. Firstly I adjust the resonance control which introduces the low frequency osc sound. Then I change the cut off frequenc ...
Topic: MFOS SVF Resonance Issue
amongstmyselves Replies: 5 Views: 4290	Posted: Mon Dec 31, 2012 6:47 pm Subject: MFOS SVF Resonance Issue Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 5 Views: 4290	Thanks for the reply elmegil. At least people are reading. It's an odd one as I've mentioned because both boards are doing the same thing. I'll probably go back and go through Ray's troubleshooting ...
Topic: MFOS SVF Resonance Issue
amongstmyselves Replies: 5 Views: 4290	Posted: Mon Dec 31, 2012 5:19 pm Subject: MFOS SVF Resonance Issue Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 5 Views: 4290	Wow. I'm intrigued that so many people have looked at this message but nobody has replied. Even with a no idea but .... Silly question is whether the problem is obvious that it doesn't warrant a re ...
Topic: MFOS SVF Resonance Issue
amongstmyselves Replies: 5 Views: 4290	Posted: Thu Dec 27, 2012 6:41 pm Subject: MFOS SVF Resonance Issue Subject description: Doesn't appear to be working correctly Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 5 Views: 4290	Hi all, I've just finished two of the MFOS SVF modules and they both have the same issue / problem. It appears to be in the Resonance part of the circuit though it's strange that they both h ...
Topic: MFOS SVF "fix"
amongstmyselves Replies: 9 Views: 10856	Posted: Tue Sep 25, 2012 11:04 pm Subject: MFOS SVF "fix" Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 9 Views: 10856	This will probably be no help at all. It's stating the obvious. They do not sound correct to my ears either. That said, listening to the identical type samples on the MFOS SVF page, these also don' ...
Topic: Affordable Oscilliscope for MFOS or NOT ?
amongstmyselves Replies: 10 Views: 7724	Posted: Tue Sep 11, 2012 4:02 pm Subject: Affordable Oscilliscope for MFOS or NOT ? Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 10 Views: 7724	Thanks again guys for putting me straight on the "cheaper" options. I'll take every ones suggestions and I'll wait until closer to the time comes for construction to start as I'm still wo ...
Topic: Affordable Oscilliscope for MFOS or NOT ?
amongstmyselves Replies: 10 Views: 7724	Posted: Mon Sep 10, 2012 3:09 pm Subject: Affordable Oscilliscope for MFOS or NOT ? Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 10 Views: 7724	Thanks RF Interesting to see you have the small scope in your synth. That would be fun. I've come across another smaller computer based scope which is the DSO Nano V2 - http://www.seeedstudio.co ...
Topic: Affordable Oscilliscope for MFOS or NOT ?
amongstmyselves Replies: 10 Views: 7724	Posted: Sun Sep 09, 2012 10:25 pm Subject: Affordable Oscilliscope for MFOS or NOT ? Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 10 Views: 7724	Thanks for all the advice(es). elmegil I think has the best advise and that's to keep an eye out on Ebay (which we do have in Oz). Just having a quick look now I've come across a BWD OSCILLOSCO ...
Topic: Component Values
amongstmyselves Replies: 6 Views: 2623	Posted: Sun Sep 09, 2012 5:46 pm Subject: Component Values Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 6 Views: 2623	Nice looking unit Ashley. Hey thanks for the suggestions for extra modules and the size of the unit. Since posting that pic I've added the MFOS Dual VCA module after reading a thread concerning &qu ...
Topic: Affordable Oscilliscope for MFOS or NOT ?
amongstmyselves Replies: 10 Views: 7724	Posted: Thu Sep 06, 2012 10:45 pm Subject: Affordable Oscilliscope for MFOS or NOT ? Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 10 Views: 7724	Hi all, I'm embarking on a MFOS mega synth (Ultimate, Plus, etc etc) for 2013. Something I don't have in my arsenal is an oscilliscope. Ray says you need one for the VCOs and turning the VCF so ...
Topic: Component Values
amongstmyselves Replies: 6 Views: 2623	Posted: Thu Sep 06, 2012 6:42 pm Subject: Component Values Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 6 Views: 2623	Thanks for the lead ashleym. I've attached the current version of the front panel. I'm fortunate that my part time job is in printing and I have access (no charge usually) to a flat bed printer so ...
Topic: Component Values
amongstmyselves Replies: 6 Views: 2623	Posted: Sat Sep 01, 2012 11:11 pm Subject: Component Values Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 6 Views: 2623	Cheers Feifer
Topic: Component Values
amongstmyselves Replies: 6 Views: 2623	Posted: Sat Sep 01, 2012 9:53 pm Subject: Component Values Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
amongstmyselves Replies: 6 Views: 2623	Hi all, A newbie here. I've planned to create a monster modular / normalised synth using many of Ray's modules. A question though. Ray is using odd value resistors eg. 499K. Do I need to ...