Search found 12 matches

i was excited to share with the community a tiny SMD version of Yves's minimoog filter - i've built it before using discrete through hole components and it sounds great - however, trying to make it wo ...

yes! thank you, that looks like exactly what i'm looking for...!

it's a good place to start

drunken

hey list!

could anyone please direct me towards something i can read on simple ASR/function designs with independently voltage controlled rise/fall parameters?

many thanks for anything that co ...

Concerning through-zero oscillators and FM.

As EN129 says, mathematically true FM requires that 1) full wave rectification of the linear input, and 2) sign-change detection and reversal of the gene ...

The reason why the schematic I show in my reaction is usually used as a mixer and yours is not is as follows:
An opamp will amplify signals until both the inputs have the same potential.
In the diag ...

okay - might seem like a dumb question, but i'f rather check and double check with someone before fabricating my synth design!

so - i want to sum 4 different signals together, coming from a voltage ...

hey board,

I am trying to scale 10v CV to work with some THAT2180B chips I have - and the datasheet is a bit confusing to say the least...

here is the sheet ; http://www.thatcorp.com/datashts/ ...

everything was wired correctly, i just failed to ground an unused section of my TL074, it was oscillating like crazy!! Embarassed

it's a beautiful filter, WOW!!!! thank you so much for sharing ...

i designed an SMD version of the 2N3904/2N3906 schematic - alas - it doesn't work!

i didn't match the transistors, but sourced them off the same tape from mouser - someone mentioned matching wouldn ...

hello board!

after looking at ray wilson's single buss keyboard schematics, I put together a quick idea for a digitally controlled V/Octave interface.

I have a lot of standalone capacitive touch ...

hello everybody!

this will be my first post,

I have recently built a couple of nice bergfotron minimoog VCO's :: http://hem.bredband.net/bersyn/VCO/MVCO_s.pdf

I've been looking at soft-syn ...

hello everybody!

this will be my first post,

I have recently built a couple of nice bergfotron minimoog VCO's :: http://hem.bredband.net/bersyn/VCO/MVCO_s.pdf

I've been looking at soft-sync s ...

Author	Message
Topic: Tiny Minimoog VCF design - whats wrong?
oolfur Replies: 1 Views: 3771	Posted: Fri Jan 12, 2018 4:23 pm Subject: Tiny Minimoog VCF design - whats wrong? Forum: DIY Hardware and Software » YuSynth
oolfur Replies: 1 Views: 3771	i was excited to share with the community a tiny SMD version of Yves's minimoog filter - i've built it before using discrete through hole components and it sounds great - however, trying to make it wo ...
Topic: VC function generator
oolfur Replies: 3 Views: 3099	Posted: Sun Dec 11, 2016 6:28 am Subject: VC function generator Forum: DIY Hardware and Software
oolfur Replies: 3 Views: 3099	yes! thank you, that looks like exactly what i'm looking for...! it's a good place to start
Topic: VC function generator
oolfur Replies: 3 Views: 3099	Posted: Sat Dec 10, 2016 8:39 pm Subject: VC function generator Forum: DIY Hardware and Software
oolfur Replies: 3 Views: 3099	hey list! could anyone please direct me towards something i can read on simple ASR/function designs with independently voltage controlled rise/fall parameters? many thanks for anything that co ...
Topic: ThruZeroVCOPCBproject
oolfur Replies: 60 Views: 29074	Posted: Mon Aug 29, 2016 9:34 am Subject: ThruZeroVCOPCBproject Forum: DIY Hardware and Software
oolfur Replies: 60 Views: 29074	Concerning through-zero oscillators and FM. As EN129 says, mathematically true FM requires that 1) full wave rectification of the linear input, and 2) sign-change detection and reversal of the gene ...
Topic: op-amp mixer configuration
oolfur Replies: 3 Views: 3395	Posted: Wed Mar 16, 2016 4:12 pm Subject: op-amp mixer configuration Forum: DIY Hardware and Software
oolfur Replies: 3 Views: 3395	The reason why the schematic I show in my reaction is usually used as a mixer and yours is not is as follows: An opamp will amplify signals until both the inputs have the same potential. In the diag ...
Topic: op-amp mixer configuration
oolfur Replies: 3 Views: 3395	Posted: Wed Mar 16, 2016 8:14 am Subject: op-amp mixer configuration Forum: DIY Hardware and Software
oolfur Replies: 3 Views: 3395	okay - might seem like a dumb question, but i'f rather check and double check with someone before fabricating my synth design! so - i want to sum 4 different signals together, coming from a voltage ...
Topic: THAT2180 confusion
oolfur Replies: 3 Views: 2882	Posted: Wed Dec 09, 2015 7:33 am Subject: THAT2180 confusion Forum: DIY Hardware and Software
oolfur Replies: 3 Views: 2882	hey board, I am trying to scale 10v CV to work with some THAT2180B chips I have - and the datasheet is a bit confusing to say the least... here is the sheet ; http://www.thatcorp.com/datashts/ ...
Topic: Discrete Transistor 2040 SVVCF
oolfur Replies: 58 Views: 73009	Posted: Sun Nov 15, 2015 5:26 pm Subject: Discrete Transistor 2040 SVVCF Forum: DIY Hardware and Software
oolfur Replies: 58 Views: 73009	everything was wired correctly, i just failed to ground an unused section of my TL074, it was oscillating like crazy!! it's a beautiful filter, WOW!!!! thank you so much for sharing ...
Topic: Discrete Transistor 2040 SVVCF
oolfur Replies: 58 Views: 73009	Posted: Sat Nov 14, 2015 9:40 am Subject: Discrete Transistor 2040 SVVCF Forum: DIY Hardware and Software
oolfur Replies: 58 Views: 73009	i designed an SMD version of the 2N3904/2N3906 schematic - alas - it doesn't work! i didn't match the transistors, but sourced them off the same tape from mouser - someone mentioned matching wouldn ...
Topic: digital logic to volts/octave
oolfur Replies: 0 Views: 5234	Posted: Wed Nov 04, 2015 9:09 pm Subject: digital logic to volts/octave Forum: DIY Hardware and Software » Musical Interfaces
oolfur Replies: 0 Views: 5234	hello board! after looking at ray wilson's single buss keyboard schematics, I put together a quick idea for a digitally controlled V/Octave interface. I have a lot of standalone capacitive touch ...
Topic: adding soft sync to minimoog VCO clone
oolfur Replies: 1 Views: 1743	Posted: Thu Oct 08, 2015 2:58 pm Subject: adding soft sync to minimoog VCO clone Forum: DIY Hardware and Software
oolfur Replies: 1 Views: 1743	hello everybody! this will be my first post, I have recently built a couple of nice bergfotron minimoog VCO's :: http://hem.bredband.net/bersyn/VCO/MVCO_s.pdf I've been looking at soft-syn ...
Topic: adding soft sync to minimoog VCO clone
oolfur Replies: 1 Views: 6478	Posted: Thu Oct 08, 2015 6:29 am Subject: adding soft sync to minimoog VCO clone Forum: DIY Hardware and Software » Circuit Bending
oolfur Replies: 1 Views: 6478	hello everybody! this will be my first post, I have recently built a couple of nice bergfotron minimoog VCO's :: http://hem.bredband.net/bersyn/VCO/MVCO_s.pdf I've been looking at soft-sync s ...