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xpmtl
Joined: Aug 10, 2007 Posts: 162 Location: Brussels, Belgium
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o-live
Joined: Aug 14, 2012 Posts: 25 Location: france
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Posted: Wed Aug 15, 2012 4:10 pm Post subject:
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thank you
but is not my question ,i search the bill of material (part list)
of ds7 /ds8 who used teh lm13700
and if is possible the component layout of the circuit diagram you can see on firts page of this topics .
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feggster
Joined: Sep 12, 2011 Posts: 52 Location: uk
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o-live
Joined: Aug 14, 2012 Posts: 25 Location: france
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Posted: Sun Aug 19, 2012 1:36 pm Post subject:
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Thank you so much for reply
anyone know the real difference with the ds8 and how upgrade ds7 to ds8 ?
and do you have found how to use the free pins of teh lm13700 ? |
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jumunius
Joined: Apr 19, 2010 Posts: 346 Location: San Francisco, CA
Audio files: 13
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Posted: Sun Aug 19, 2012 3:27 pm Post subject:
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o-live wrote: | Thank you so much for reply
anyone know the real difference with the ds8 and how upgrade ds7 to ds8 ?
? |
Only difference is the DS8 adds a noise source I think. _________________ -Jim |
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umschmitt
Joined: Jun 29, 2011 Posts: 189 Location: brrlin
Audio files: 11
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Posted: Mon Aug 20, 2012 10:19 am Post subject:
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Quote: | and do you have found how to use the free pins of teh lm13700 ? |
You don't need to use them here, 4 of them are for built-in buffers, the remaining 2 for so-called linearizing diodes inputs (see datasheet). _________________ ::U::N::S::C::H::N::E::L::L:: |
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o-live
Joined: Aug 14, 2012 Posts: 25 Location: france
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Posted: Thu Aug 23, 2012 6:50 pm Post subject:
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ok ihave see the datasheet but don't understand what is diode buffer
now i have press'n'peel a board ,when ihave time i continue
(i try to add a 2044 filter inside and a germanium distortion)
thank you for your help |
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nikitsan
Joined: Dec 13, 2012 Posts: 4 Location: uganda
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feggster
Joined: Sep 12, 2011 Posts: 52 Location: uk
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Posted: Thu Dec 13, 2012 4:09 am Post subject:
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dnny posted on page 1 :
'for "deeper" bass on VCO replace R11 (560ohm) whit 100ohm'
maybe that will help. |
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nikitsan
Joined: Dec 13, 2012 Posts: 4 Location: uganda
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Posted: Thu Dec 13, 2012 9:17 am Post subject:
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feggster wrote: | dnny posted on page 1 :
'for "deeper" bass on VCO replace R11 (560ohm) whit 100ohm'
maybe that will help. |
i don`t need deeper bass, i want slower LFO Rate... |
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feggster
Joined: Sep 12, 2011 Posts: 52 Location: uk
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Posted: Thu Dec 13, 2012 10:47 am Post subject:
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right you are
I think I used a 2m2 pot on mine, you could try that. |
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richardc64
Joined: Jun 01, 2006 Posts: 679 Location: NYC
Audio files: 26
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Posted: Thu Dec 13, 2012 2:55 pm Post subject:
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Or use a larger cap for C3. _________________ Revenge is a dish best served with a fork... to the eye |
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nikitsan
Joined: Dec 13, 2012 Posts: 4 Location: uganda
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Posted: Fri Dec 14, 2012 12:23 am Post subject:
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richardc64 wrote: | Or use a larger cap for C3. |
thnx i will try it... |
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nikitsan
Joined: Dec 13, 2012 Posts: 4 Location: uganda
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Posted: Wed Jan 02, 2013 6:44 am Post subject:
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richardc64 wrote: | Or use a larger cap for C3. |
You was right about a cap!!! my cap was 472 instead 473.
thanks alot |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Thu Feb 07, 2013 8:01 am Post subject:
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Hi first post after lurking for quite a while:)
Is there anyone still active on this forum who has dnny's high resolution dual DS7 pcb layout? Iam looking to build one and the lo resultion one just doesn't cut it for me. |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Sun Feb 10, 2013 4:13 am Post subject:
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I got a hold of dnny so if anyone wants the dual board layout just drop me a line. |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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feggster
Joined: Sep 12, 2011 Posts: 52 Location: uk
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Posted: Fri Feb 15, 2013 4:22 am Post subject:
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ds7 'fixed' it wasn't broke! i etched/built one of dnny's dual boards it worked great.
i guess it is a good idea to do a single one, although seems a shame to waste half a lm13700.
p.s. I built the ak47 ds8 that works great too.
edit: pin 6 of lm13700 is v- |
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sonicwarrior
Joined: Dec 22, 2005 Posts: 266 Location: Cologne, Germany
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Posted: Fri Feb 15, 2013 1:09 pm Post subject:
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feggster wrote: | although seems a shame to waste half a lm13700. |
Why not make it dual then? |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Fri Feb 15, 2013 3:19 pm Post subject:
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Iam making this on the request of a friend who runs All Out Dub/step Soundsystem and he wants a single to start with.
Iam thinking about making a DIL-6 (or is it 8 pins on the CA3080) for the surfacemount version of the 13700 so you can just plop it on the original board layout. |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Fri Feb 15, 2013 3:35 pm Post subject:
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Oh and remember the image i posted is copperside up so topright pin on the 13700 is number one and as far as i can see i need to run a path or a jumper from pin 11 to V+. but that should be it. |
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elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
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Posted: Sat Feb 16, 2013 8:08 am Post subject:
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But if you have a dual and want a single, you just use one, right? |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Sat Feb 16, 2013 5:38 pm Post subject:
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yeah but i dont want to make a dual board since for it to work you need to populate both boards.
and by fixed the meaning is that i enlarged all pads |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Thu Feb 21, 2013 2:14 pm Post subject:
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Pin 11 had to be routed aswell on the single board. so iam finishing it tomorrow hoping to have it usable on saturday since my friends are performing then.
I routed pin 11 to what i think is V- minus on the board. so this should work have a look. next step is building the dual board for myself. |
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ElektroBear
Joined: Feb 07, 2013 Posts: 11 Location: Sweden
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Posted: Thu Feb 28, 2013 2:56 pm Post subject:
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Alas i have not gotten my version of this to work.
So iam gonna start building the dual one tomorrow i just need to stock up on resistors. |
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