[sdiy] help finding roland filter schematics?

Wed Apr 29 20:23:15 CEST 2009

Hey Dan,

I'd be interested in seeing the results. And no matter what your wife says, you can never have too many filters ;)

-Ian (has more filters than oscillators at the moment) Smith

----------------------------------------
> From: subjectivity at hotmail.com
> To: gsn10 at hotmail.com; synth-diy at dropmix.xs4all.nl
> Subject: RE: [sdiy] help finding roland filter schematics?
> Date: Wed, 29 Apr 2009 17:37:42 +0000
> CC:
>
>
> by the way...would anyone be interested in knowing the results of these experiments with the roland FILTER CHIP schematics? or has it already been done a million times?
>
> in other words, i am going to try and figure out if i can make a jupiter filter,etc with a standard 13700.
>
> thanks
>
>
>
> --------------------------------------------
> check out various dan music at:
>
> http://www.myspace.com/lossnyc
>
> (updated monthly)
>
> http://www.soundclick.com/lossnyc.htm
>
>
>
> http://www.indie911.com/dan-snazelle
>
> (or for techno) http://www.myspace.com/snazelle
>
> ALSO check out Dan synth/Fx projects:
>
> AUDIO ARK:
>
> www.youtube.com/watch?v=TJRpvaOcUic
>
> www.youtube.com/watch?v=BqIa_lXQNTA&feature=channel_page
>
> www.youtube.com/watch?v=V4nJPjGgOcU&feature=channel_page
>
> and soundtrack/design work:
>
> NEW: check out Dan's sound design from the 1998 award winning film SAFARI by catherine chalmers
>
> http://www.catherinechalmers.com/videos.cfm
>
>
>
>
>
>
> ----------------------------------------
>> From: gsn10 at hotmail.com
>> CC: synth-diy at dropmix.xs4all.nl
>> Subject: RE: [sdiy] help finding roland filter schematics?
>> Date: Wed, 29 Apr 2009 13:04:30 -0400
>>
>>
>> The SH-1000, SH-2000, SH-3 (not SH-3a), SH-5, System 100 (not 100M) and TB-303 all used diode or transistor ladder filters. All others, as far as I know, used OTA designs, though there were plenty of variations (using 3080, BA662, custom chips that included buffers and a resonance OTA, in both 4 pole and state variable topologies).
>>
>> ----------------------------------------
>>> From: subjectivity at hotmail.com
>>> To: fanwander at mnet-online.de
>>> Subject: RE: [sdiy] help finding roland filter schematics?
>>> Date: Wed, 29 Apr 2009 15:08:34 +0000
>>> CC: synth-diy at dropmix.xs4all.nl
>>>
>>>
>>>
>>> after more searching (and printing out the SH7, i realized it looks great!) i really only still need the SH1 filter values.
>>>
>>>
>>> btw...are there any other missing roland series that use OTA filters? i know the DELTA does...any others?
>>> thanks so much for your help and wonderful site!!
>>>
>>>
>>>
>>>
>>>
>>> --------------------------------------------
>>> check out various dan music at:
>>>
>>> http://www.myspace.com/lossnyc
>>>
>>> (updated monthly)
>>>
>>> http://www.soundclick.com/lossnyc.htm
>>>
>>>
>>>
>>> http://www.indie911.com/dan-snazelle
>>>
>>> (or for techno) http://www.myspace.com/snazelle
>>>
>>> ALSO check out Dan synth/Fx projects:
>>>
>>> AUDIO ARK:
>>>
>>> www.youtube.com/watch?v=TJRpvaOcUic
>>>
>>> www.youtube.com/watch?v=BqIa_lXQNTA&feature=channel_page
>>>
>>> www.youtube.com/watch?v=V4nJPjGgOcU&feature=channel_page
>>>
>>> and soundtrack/design work:
>>>
>>> NEW: check out Dan's sound design from the 1998 award winning film SAFARI by catherine chalmers
>>>
>>> http://www.catherinechalmers.com/videos.cfm
>>>
>>>
>>>
>>>
>>>
>>>
>>> ----------------------------------------
>>>> Date: Wed, 29 Apr 2009 16:51:52 +0200
>>>> From: fanwander at mnet-online.de
>>>> To: subjectivity at hotmail.com
>>>> CC: synth-diy at dropmix.xs4all.nl
>>>> Subject: Re: [sdiy] help finding roland filter schematics?
>>>>
>>>> Hi Dan
>>>>
>>>> the schematics are linked in that file ;-)
>>>>
>>>> http://fa.utfs.org/diy/roland_filters/SH1.jpg
>>>> http://fa.utfs.org/diy/roland_filters/SH2.jpg
>>>> http://fa.utfs.org/diy/roland_filters/SH5.jpg
>>>> http://fa.utfs.org/diy/roland_filters/SH7.jpg
>>>> http://fa.utfs.org/diy/roland_filters/SH09.jpg
>>>>
>>>> These cutouts are mostly from scans which Mark Glinsky is selling. They
>>>> were intended for informational use only. I could do some littlebit
>>>> large cutouts, but if you want the full schemoe, then please buy it from
>>>> Mark. He does a great job on that and I don't want to spoil his business.
>>>>
>>>> Also there is http://spash.free.fr/download/synthmanuals/ from Greg
>>>> Baumont with a lot of service manuals.
>>>>
>>>> Florian
>>>>
>>>>
>>>> Dan Snazelle schrieb:
>>>>>
>>>>> hey there
>>>>>
>>>>> in my quest to better understand OTA filters, i have been trying to find some of the old roland OTA filter schematics
>>>>> in readable scans.
>>>>>
>>>>> i found this CHART which lists which of the roland filters use regular OTA's.
>>>>>
>>>>> http://fa.utfs.org/diy/roland_filters/index.html
>>>>>
>>>>>
>>>>> so i am looking for readable SCHEMATICS of the SH1, SH2, SH7, and maybe sh09
>>>>>
>>>>> also...these are probrably good ones to look at in general for vco and lfo ideas,etc.
>>>>>
>>>>> a few questions...does anyone know how much a BA662 compares to a ca3080?
>>>>>
>>>>> also...in the later ROLAND OTA CHIPS are these basically just 4 otas on a chip? or is there something fancier going on? are these available as schematics anywhere?
>>>>>
>>>>> Thanks SO MUCH!!
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --------------------------------------------
>>>>> check out various dan music at:
>>>>>
>>>>> http://www.myspace.com/lossnyc
>>>>>
>>>>> (updated monthly)
>>>>>
>>>>> http://www.soundclick.com/lossnyc.htm
>>>>>
>>>>>
>>>>>
>>>>> http://www.indie911.com/dan-snazelle
>>>>>
>>>>> (or for techno) http://www.myspace.com/snazelle
>>>>>
>>>>> ALSO check out Dan synth/Fx projects:
>>>>>
>>>>> AUDIO ARK:
>>>>>
>>>>> www.youtube.com/watch?v=TJRpvaOcUic
>>>>>
>>>>> www.youtube.com/watch?v=BqIa_lXQNTA&feature=channel_page
>>>>>
>>>>> www.youtube.com/watch?v=V4nJPjGgOcU&feature=channel_page
>>>>>
>>>>> and soundtrack/design work:
>>>>>
>>>>> NEW: check out Dan's sound design from the 1998 award winning film SAFARI by catherine chalmers
>>>>>
>>>>> http://www.catherinechalmers.com/videos.cfm
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Synth-diy mailing list
>>>>> Synth-diy at dropmix.xs4all.nl
>>>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>>>>
>>>>
>>>
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>>
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