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New Serge style ASR and VCS for Euro!
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Author New Serge style ASR and VCS for Euro!
boramx
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PostPosted: Sat Mar 10, 2012 9:58 am    Post subject: Reply with quote Add User to Ignore List

how much "droop" are we talking about here?
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PostPosted: Sat Mar 10, 2012 10:05 am    Post subject: Reply with quote Add User to Ignore List

richard wrote:
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


Can anyone confirm or deny? I think pitch is most of the reason to have an ASR...


i can confirm that cgs asr was useless for pitch. maybe elby made some needed changes but i would beware until we hear for sure.

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boramx
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PostPosted: Sat Mar 10, 2012 10:12 am    Post subject: Reply with quote Add User to Ignore List

keith fullerton whitman had a coupla PLan B asrs. his intonation only those arpeggiated lines was rather tight.
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Nuuj
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PostPosted: Sat Mar 10, 2012 10:45 am    Post subject: Reply with quote Add User to Ignore List

Is anyone even reading the description of the Elby ASR?
It says it's a different design with no droop. My guess is that it's digital s/h under analog control.

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Esnan
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PostPosted: Sat Mar 10, 2012 10:58 am    Post subject: Reply with quote Add User to Ignore List

flashheart wrote:
Remember reading about the ASR on the plan B site, according to the blurb the design has none of the usual droop / voltage drop problems other ASRs do. Seems it might after all?


Yep, it does. I even mailed Peter G about it back in the day, and he made som kind of "well, it droops a little" statement after that. On the Yahoo! Doepfer mailing list if I remember correctly.

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richard
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PostPosted: Sat Mar 10, 2012 11:02 am    Post subject: Reply with quote Add User to Ignore List

Nuuj wrote:
Is anyone even reading the description of the Elby ASR?
It says it's a different design with no droop. My guess is that it's digital s/h under analog control.


which would be fine with me, these things would be better if they were digital IMO

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clarke68
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PostPosted: Sat Mar 10, 2012 11:19 am    Post subject: Reply with quote Add User to Ignore List

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.
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Entrainer
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PostPosted: Sat Mar 10, 2012 12:01 pm    Post subject: Reply with quote Add User to Ignore List

I can confirm the Toppobrillo Quantimator is perfect for pitch and is a
nice quantizer as well.

VCS looks nice, anyone know offhand what the default voltage swing is?
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p3t0r
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PostPosted: Sat Mar 10, 2012 12:04 pm    Post subject: Reply with quote Add User to Ignore List

Really like the VCS, but with this size and price I think I'd take another maths. Still very cool though!
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Monobass
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PostPosted: Sat Mar 10, 2012 12:08 pm    Post subject: Reply with quote Add User to Ignore List

I'm thinking about the DIY VCS and fitting multiple boards in a smaller but still generous space...
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Isaiah
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PostPosted: Sat Mar 10, 2012 12:48 pm    Post subject: Reply with quote Add User to Ignore List

Monobass wrote:
I'm thinking about the DIY VCS and fitting multiple boards in a smaller but still generous space...


We do seem to be having similar ideas recently, Steve!
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Monobass
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PostPosted: Sat Mar 10, 2012 1:40 pm    Post subject: Reply with quote Add User to Ignore List

Isaiah wrote:
Monobass wrote:
I'm thinking about the DIY VCS and fitting multiple boards in a smaller but still generous space...


We do seem to be having similar ideas recently, Steve!


Guinness ftw!

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pulse_divider
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PostPosted: Sat Mar 10, 2012 4:10 pm    Post subject: Reply with quote Add User to Ignore List

Nuuj wrote:
Is anyone even reading the description of the Elby ASR?
It says it's a different design with no droop. My guess is that it's digital s/h under analog control.
'

Where does it say this?
I'm looking at the site right now and here's the full description:
Quote:
The CGS734 is an analog control voltage shift register, three stages in length. It duplicates the functionality of the Serge ASR, but goes about it in a very different way. It is great for producing "arabesque-like" sequences, trills etc., when used with VCOs. Of course it's use is not limited to VCOs only.
Unlike ASRs produced using "bucket brigade" techniques, the CV outputs are constant from the beginning of the cycle to the end - there is no "charge period" in which a brief glide is heard.


I checked my frac ASR and it's CGS 34... perhaps Elby is using a different board? I'm not too up on my CGS so perhaps they make multiple ASRs.

I hope it works well, I love shift registers and use my Quantimator in this mode pretty exclusively. Like I said earlier, though, 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.
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widgetoz
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PostPosted: Sat Mar 10, 2012 4:32 pm    Post subject: Reply with quote Add User to Ignore List

gwaidan wrote:
Bananlogue VCS and WVX are both listed as "preorder" at BCM...

Nice to see these two coming as Euro kits-Euro VCS is a pretty easy build with Ken's board set and I think Laurie will only improve on that if he redesigns the board (as he usually does).

If the ASR uses CA3140 opamps then it should have decent hold times.

Edit: Hope the VCS uses the level-shifted/inverted circuit from the 6" version of the board to get the AC Out rather than just putting it through a capacitor like the Bananlogue version

The CGS775 VCS actually uses Ken's own euro boards. It is part of the arrangement with Ken that this module uses that pcb and I am just supplying the front panel to complete the design. So the Panther CGS775 has the identical virtues of the CGS75 part.
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ringstone
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PostPosted: Sat Mar 10, 2012 6:31 pm    Post subject: Reply with quote Add User to Ignore List

Good job on these Laurie, looks like I'm going to have to start saving for another Elby order!

Cheers
Blair

EDIT: And the new shop design was a pleasant surprise... thumbs up

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Veqtor
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PostPosted: Sat Mar 10, 2012 6:35 pm    Post subject: Reply with quote Add User to Ignore List

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.

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falafelbiels
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PostPosted: Sat Mar 10, 2012 9:01 pm    Post subject: Reply with quote Add User to Ignore List

So how deep will this VCS be then?






hyper
kits!

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Nuuj
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PostPosted: Sat Mar 10, 2012 9:13 pm    Post subject: Reply with quote Add User to Ignore List

"Unlike ASRs produced using "bucket brigade" techniques, the CV outputs are constant from the beginning of the cycle to the end - there is no "charge period" in which a brief glide is heard. "

Am I the only one who interprets this as no droop?

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pulse_divider
triangletooth


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PostPosted: Sat Mar 10, 2012 9:46 pm    Post subject: Reply with quote Add User to Ignore List

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
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gwaidan
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PostPosted: Sat Mar 10, 2012 11:24 pm    Post subject: Reply with quote Add User to Ignore List

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. smile

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?

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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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