Search found 9 matches

I've built one of these and its working well. I have one problem though, when the recirculation pot is at minimum I still get about 4 echoes, is there a simple change I can make to get the minimum rec ...

just wondering if there is any progress on this design, sounded like a great idea.

Thanks Yves
wow you really know your stuff, the triangle was <<8Vpp so I checked all the recommended resistors, they were all correct so I just increased R23 to 300K which brought up the trian ...

thanks Thalassa, yes I've tried varying the sine wave shape trimmer I'm getting the following variations , ie the top or bottom half of a sine wave but not the whole wave, any suggestions? I'm getting ...

Hi Yves

Thanks for your generous sharing, I've built one of your LFO version 2, it all works well except the sine waveform isn't right. It is adjustable but is comming out like a pure triangle wave ...

Hi Ian

thanks for the generously supplied clarification, one last amateur type question, I'm a little confused by the Extra arrow, (is that biasing?) on U1 & U2 the LM13700, could you add the l ...

Thanks for posting this Ian

I'm thinking of having a go at building this and I've a few questions ( I'm a electronic novice so bear with me ) . What would you recommend for the PNP transistor next ...

Thanks Dana

That makes perfect sense I'll give it a try . I was looking through google patents and Maurice Martenot brings up some pretty interesting Ondes Martent Patents. Apart from the control ...

Nice work on the Ondes controller Dana, I'm just wondering if you can outline the circuit your using to connect the 10 turn pot to the Q125 module, I'm novice in the diy area but it seems there must b ...

Author	Message
Topic: Scott bernardi PT2399 VC delay
Minimalist Replies: 135 Views: 360743	Posted: Sat Nov 13, 2010 5:46 pm Subject: Scott bernardi PT2399 VC delay Forum: DIY Hardware and Software
Minimalist Replies: 135 Views: 360743	I've built one of these and its working well. I have one problem though, when the recirculation pot is at minimum I still get about 4 echoes, is there a simple change I can make to get the minimum rec ...
Topic: Famous Fixed Filters - FFF PCB ?
Minimalist Replies: 64 Views: 82258	Posted: Fri Aug 20, 2010 2:47 pm Subject: Is this project still a possibility? Forum: DIY Hardware and Software » Jürgen Haible designs
Minimalist Replies: 64 Views: 82258	just wondering if there is any progress on this design, sounded like a great idea.
Topic: LFO Problems
Minimalist Replies: 49 Views: 39438	Posted: Wed Jun 03, 2009 12:40 am Subject: LFO Problems Forum: DIY Hardware and Software » YuSynth
Minimalist Replies: 49 Views: 39438	Thanks Yves wow you really know your stuff, the triangle was <<8Vpp so I checked all the recommended resistors, they were all correct so I just increased R23 to 300K which brought up the trian ...
Topic: LFO Problems
Minimalist Replies: 49 Views: 39438	Posted: Thu May 28, 2009 12:09 pm Subject: LFO Sine wave shape problem Forum: DIY Hardware and Software » YuSynth
Minimalist Replies: 49 Views: 39438	thanks Thalassa, yes I've tried varying the sine wave shape trimmer I'm getting the following variations , ie the top or bottom half of a sine wave but not the whole wave, any suggestions? I'm getting ...
Topic: LFO Problems
Minimalist Replies: 49 Views: 39438	Posted: Thu May 28, 2009 6:37 am Subject: LFO sine waveform like a triangle wave Forum: DIY Hardware and Software » YuSynth
Minimalist Replies: 49 Views: 39438	Hi Yves Thanks for your generous sharing, I've built one of your LFO version 2, it all works well except the sine waveform isn't right. It is adjustable but is comming out like a pure triangle wave ...
Topic: Controller, Ribbon, Softpot, another.
Minimalist Replies: 31 Views: 61243	Posted: Tue Mar 03, 2009 2:22 am Subject: Controller, Ribbon, Softpot, another. Forum: DIY Hardware and Software » Musical Interfaces
Minimalist Replies: 31 Views: 61243	Hi Ian thanks for the generously supplied clarification, one last amateur type question, I'm a little confused by the Extra arrow, (is that biasing?) on U1 & U2 the LM13700, could you add the l ...
Topic: Controller, Ribbon, Softpot, another.
Minimalist Replies: 31 Views: 61243	Posted: Sat Feb 28, 2009 3:22 pm Subject: Controller, Ribbon, Softpot, another. Forum: DIY Hardware and Software » Musical Interfaces
Minimalist Replies: 31 Views: 61243	Thanks for posting this Ian I'm thinking of having a go at building this and I've a few questions ( I'm a electronic novice so bear with me ) . What would you recommend for the PNP transistor next ...
Topic: ondes martenot
Minimalist Replies: 240 Views: 321824	Posted: Fri Feb 20, 2009 2:30 pm Subject: ondes martenot Forum: DIY Hardware and Software
Minimalist Replies: 240 Views: 321824	Thanks Dana That makes perfect sense I'll give it a try . I was looking through google patents and Maurice Martenot brings up some pretty interesting Ondes Martent Patents. Apart from the control ...
Topic: ondes martenot
Minimalist Replies: 240 Views: 321824	Posted: Thu Feb 19, 2009 5:04 pm Subject: ondes martenot Forum: DIY Hardware and Software
Minimalist Replies: 240 Views: 321824	Nice work on the Ondes controller Dana, I'm just wondering if you can outline the circuit your using to connect the 10 turn pot to the Q125 module, I'm novice in the diy area but it seems there must b ...