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New Serge style ASR and VCS for Euro! |
widgetoz
Wiggling with Experience
Joined: 02 May 2009
Last Visit: 18 May 2013
Posts: 314
Location: Sydney, Australia
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 Posted: Sun Mar 11, 2012 12:41 am Post subject: |
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| gwaidan wrote: | | clarke68 wrote: | Mildly off-topic, but releated...is this a new module as well:
...? I don't recall seeing it before...obviously I need to start paying more attention to Elby. |
That one (and the Octave/Volts/Hertz) has been kicking around on Laurie's site as coming soon since about 2008. :)
| pulse_divider wrote: | | Veqtor wrote: | | pulse_divider wrote: | | the CGS one I have is not really usable for pitch. I guess it's possible that it has a technical problem, but it seems to be functioning (despite being sloppy on pitch) as intended and there don't appear to be any trimpots to calibrate. |
Did you build it yourself? Capacitor choice seems to be very important. |
Nope, it's a Metalbox build... Top notch quality.
I just google searched and found I'm not alone:
http://electro-music.com/forum/post-327227.html |
That thread seems to offer a solution-it's variable offsets in the hold amplifiers. Maybe National LF411As would be a good solution to that? |
Don't worry, this time it IS for real. |
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gwaidan
Super Deluxe Wiggler
Joined: 07 Mar 2009
Last Visit: 24 May 2013
Posts: 1668
Location: Sydney
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| Posted: Sun Mar 11, 2012 7:46 am Post subject: |
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| widgetoz wrote: | | gwaidan wrote: | | clarke68 wrote: | Mildly off-topic, but releated...is this a new module as well:
...? I don't recall seeing it before...obviously I need to start paying more attention to Elby. |
That one (and the Octave/Volts/Hertz) has been kicking around on Laurie's site as coming soon since about 2008. 
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Don't worry, this time it IS for real. |
Yay!!! Great to see these two out in the wild at last! 
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| lordofthebored wrote: | | Any news on this yet? I just sold all my other modules of this type so I could replace it with this different implementation of the same thing! |
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KNYST
hiding in the forest
Joined: 26 Jan 2009
Last Visit: 22 May 2013
Posts: 2300
Location: the Taiga, Sweden
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widgetoz
Wiggling with Experience
Joined: 02 May 2009
Last Visit: 18 May 2013
Posts: 314
Location: Sydney, Australia
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| Posted: Sun Mar 11, 2012 7:26 pm Post subject: |
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| falafelbiels wrote: | So how deep will this VCS be then?
:hyper:
kits! |
7.3cm |
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KNYST
hiding in the forest
Joined: 26 Jan 2009
Last Visit: 22 May 2013
Posts: 2300
Location: the Taiga, Sweden
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gwaidan
Super Deluxe Wiggler
Joined: 07 Mar 2009
Last Visit: 24 May 2013
Posts: 1668
Location: Sydney
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| Posted: Tue Mar 13, 2012 11:25 pm Post subject: |
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| pulse_divider wrote: | | Veqtor wrote: | | pulse_divider wrote: | | the CGS one I have is not really usable for pitch. I guess it's possible that it has a technical problem, but it seems to be functioning (despite being sloppy on pitch) as intended and there don't appear to be any trimpots to calibrate. |
Did you build it yourself? Capacitor choice seems to be very important. |
Nope, it's a Metalbox build... Top notch quality.
I just google searched and found I'm not alone:
http://electro-music.com/forum/post-327227.html |
Have a look at the schematics on Laurie's site-looks like he's modded the circuit quite a bit including offset trimmers on all the hold amplifiers and using a modern low on-resistance DG409 instead of the original's generic CD4052 CMOS switch. It should be better-performing than the CGS original (or the Metalbox).
_________________
| lordofthebored wrote: | | Any news on this yet? I just sold all my other modules of this type so I could replace it with this different implementation of the same thing! |
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widgetoz
Wiggling with Experience
Joined: 02 May 2009
Last Visit: 18 May 2013
Posts: 314
Location: Sydney, Australia
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| Posted: Wed Mar 14, 2012 3:32 pm Post subject: |
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| KNYST wrote: | | Depth of ASR? |
7.5cm |
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Arcade Sinusoid
Wiggling with Experience
Joined: 22 Dec 2010
Last Visit: 24 May 2013
Posts: 387
Location: Chicago
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| Posted: Wed Mar 14, 2012 6:08 pm Post subject: |
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These look great! May have to pop my kit cherry!  |
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J
Veteran Wiggler
Joined: 21 Mar 2010
Last Visit: 17 May 2013
Posts: 540
Location: Yorkshire
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| Posted: Thu Mar 15, 2012 10:46 am Post subject: |
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been looking at a few kits recently, and the VCS looks like the one to go for.
are these only available direct from elby?
cheers |
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Isaiah
Ultra Wiggler
Joined: 02 Jun 2010
Last Visit: 24 May 2013
Posts: 769
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| Posted: Thu Mar 15, 2012 11:28 am Post subject: |
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Does anybody know the depth of the VCS at all?
Thanks! |
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flashheart
Ultra Wiggler
Joined: 01 Jun 2009
Last Visit: 24 May 2013
Posts: 753
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| Posted: Thu Mar 15, 2012 12:12 pm Post subject: |
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| Isaiah wrote: | Does anybody know the depth of the VCS at all?
Thanks! |
| widgetoz wrote: |
PostPosted: Sun Mar 11, 2012 11:26 pm
| Quote: | falafelbiels wrote:
So how deep will this VCS be then?
kits! |
7.3cm |
Question to Widgetoz - can I just buy a panel? I've got the VCS CGS kit (note to self: finish it!) |
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Isaiah
Ultra Wiggler
Joined: 02 Jun 2010
Last Visit: 24 May 2013
Posts: 769
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| Posted: Thu Mar 15, 2012 1:06 pm Post subject: |
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Oops!
Thanks! |
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craque
xenochronous wiggler
Joined: 15 Nov 2011
Last Visit: 24 May 2013
Posts: 372
Location: SoCal / Fullerton
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| Posted: Thu Mar 15, 2012 1:39 pm Post subject: |
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| i am ALL OVER a serge VCS kit!!!! woot! |
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zanadar
Common Wiggler
Joined: 11 Jul 2011
Last Visit: 02 Apr 2013
Posts: 111
Location: San Francisco, CA
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| Posted: Mon Mar 26, 2012 1:01 pm Post subject: |
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| Ooh! |
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richard
bananaphile
Joined: 14 Mar 2009
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Location: Berlin
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Monobass
thonk.co.uk
Joined: 29 May 2009
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otherunicorn
Santa
Joined: 20 Feb 2009
Last Visit: 24 May 2013
Posts: 417
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| Posted: Sun Apr 01, 2012 3:48 am Post subject: |
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| pulse_divider wrote: | | If that's the same CGS ASR that I have from Metalbox in frac format, it droops like a motherfucker and is useless for pitch |
Did you bother to contact Metalbox about it? You certainly didn't contact me.
It is a circuit that depends very much on the parts used. There is one type of caps that are guaranteed to fail. Personally, I have built a dozen of the things, and they ALL worked fine within reasonable limits. If you are expecting it to hold voltages for several minutes, you are dreaming. That is not it's purpose. None the less, I have had respected DIYers claiming their builds were as stable as the MOTM Sample and Hold. I've had the very occasional person who can't get it right make a lot of complaints to the public - but again not to me. You'd think that I would be the first person they asked.
I have sold hundreds of the thing, and there are only a handful of people who have complained. Each time dozens of others jumped to the design's defense, so I guess there must be other people who have successfully built them. As for the few failures I know about, only one contacted me about it, and it was built using the capacitors I mentioned above, which is how I know about them.
I discontinued it a couple years ago because of the suggested new design that came up during one of the online discussions, but people kept demanding I release it again, so there you have it. Laurie's new release the CGS734 is the NEW design I intended to replace my old CGS34 with, and is based on the experiments of one of the members here Dr. Sketch-n-Etch. It is a new design using a new set of chips. It is no longer restricted by the inadequacies of the 4052 chip, instead using a chip that can work directly across the voltage range. As such, none of the compression/decompression is needed in the new design, and that alone halves any possible droop rate, and removes several sources for possible inaccuracy. More modern op-amps are also used, so you don't have differences between the individual 3140 causing offsets.
The old thread discussing the new design is here: http://www.muffwiggler.com/forum/viewtopic.php?t=12080&postdays=0&post order=asc&highlight=asr&start=0
I hope that clears it all up.
_________________
You got that resistor in backwards...
Last edited by otherunicorn on Sun Apr 01, 2012 4:07 am; edited 4 times in total |
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otherunicorn
Santa
Joined: 20 Feb 2009
Last Visit: 24 May 2013
Posts: 417
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| Posted: Sun Apr 01, 2012 3:51 am Post subject: |
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| J wrote: | been looking at a few kits recently, and the VCS looks like the one to go for.
are these only available direct from elby?
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Yes.
_________________
You got that resistor in backwards... |
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J
Veteran Wiggler
Joined: 21 Mar 2010
Last Visit: 17 May 2013
Posts: 540
Location: Yorkshire
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| Posted: Sun Apr 01, 2012 6:06 am Post subject: |
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| otherunicorn wrote: | | J wrote: | been looking at a few kits recently, and the VCS looks like the one to go for.
are these only available direct from elby?
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Yes. |
cool, thanks.
will be keeping my eye on the VCS becoming available  |
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Mood Organ
Wiggling with Experience
Joined: 17 Dec 2008
Last Visit: 13 May 2013
Posts: 484
Location: Seattle
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| Posted: Tue May 08, 2012 6:46 pm Post subject: |
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| pulse_divider wrote: | | If that's the same CGS ASR that I have from Metalbox in frac format, it droops like a motherfucker and is useless for pitch |
Yeah, that was a real kick in the balls when I got mine. Very disappointing. |
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