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2006-11-04 by djbrow54
--- In cgs_synth@yahoogroups.com , "stiebz" wrote: > > when i wanted to test my bin-n-tic, i incidently switched + and - > power supply. after i fixed the problem, I have no sound whatsoever. > I measured 1.1 volt between pin6 of the ca3140. When you say 1.1 volts, is this DC or
2006-11-04 by Romeo Fahl
one thing to keep in mind is that CA3140s are super delicate ICs. They are very sensitive to static, but it wouldn't surprise me if hooking up power in reverse was too much for it to handle. Romeo On Nov 4, 2006, at 6:08 AM, stiebz wrote: > No chips are hot ( and nothing smells b
2006-11-04 by stiebz
No chips are hot ( and nothing smells burned ) The TL072 seems to working fine, output 7 follows the frequency settings, but on the CA3140 I always measure 0.56 V on pin 2 and 1.1 V on pin 6 regardless of the frequency setting. Would this indicate a faillure on the CA3140 or the
2006-11-04 by sasami@hotkey.net.au
Test #1 - feel if any chip is getting hot. If it is, replace it. Ken >when i wanted to test my bin-n-tic, i incidently switched + and - >power supply. after i fixed the problem, I have no sound whatsoever. >I measured 1.1 volt between pin6 of the ca3140. >Is there any part(s) tha
2006-11-03 by stiebz
when i wanted to test my bin-n-tic, i incidently switched + and - power supply. after i fixed the problem, I have no sound whatsoever. I measured 1.1 volt between pin6 of the ca3140. Is there any part(s) that is the most likely to be damaged ? thx, steven --- In cgs_synth@yahoogr
2006-11-03 by sasami@hotkey.net.au
>When will the ADSR module be ready ? Some time after I finish answering all the emails asking when the ADSR will be ready..... Call it next year. If it arrives sooner, you'll have a plesant surprise. Ken _______________________________________________________________________ Ken
2006-11-03 by anatronn
When will the ADSR module be ready ? A --- In cgs_synth@yahoogroups.com , sasami@... wrote: > > For the moment, I am doing a standard 4 stage +initial delay and optional > manual gate time, with CV control of ADSR as well as exp-lin-log adjustment > on ADR.
2006-11-02 by kopernig
This may be a long shot, but has anyone here built the Bergfotron phaser? http://hem.bredband.net/bersyn/vcp.htm I'm thinking of giving it a go. Any hints or comments? Thanks, A.
2006-10-29 by sasami@hotkey.net.au
If you use them, you will end up with "dead" center positions. They will work when switched to one side or the other, but the middle position will be no use (except perhaps as a way to quickly turn off the output). Ken >Howdy Everyone, > >I am about to finish up the Utility LFO,
2006-10-29 by brownchonald
Howdy Everyone, I am about to finish up the Utility LFO, with the optional switches to "Swap" and "Join." I have two DPDT switches that are on-off-on. There are three positions for each switch. My question: Will these switches work for this circuit? Because they aren't just on-of
2006-10-29 by Jason Proctor
thanks for the response. i'm making this particular IM a kinda minimal configuration, just 4 bits and no shift register, mainly because it is primarily for DC use and i wanted to fit it in 1U. but in any case i thought about it a bit more and decided to do both ladders and digita
2006-10-29 by Richard Brewster
I think the three fixed D/A ladders are well worth having. They only take three jacks on the panel. I use them a lot. It is also worthwhile to add the two 'disable' switches for bits 4 and 5, so you can vary the range of these outputs. Some people like the 4-input mixer with pots
2006-10-29 by Jason Proctor
for those of you who have built infinite melodies - do you use the analogue CV outs, or do you just use the digital outs to drive diatonic converters etc? i'm putting mine together right now and i'm thinking that as i might not need the analogue outs, i could leave off the resist
2006-10-28 by jeff brown
Yes, the leads are plenty long enough. Ken has both the DIP and can package outlines on the silkscreen of the VCO and Bi-N-Tic filter PCBs. 1K (and 2K) Tempcos are available from Elby Designs. http://www.elby-designs.com/ Click "Browse or Buy" and go to the "Others" category. Jef
2006-10-28 by Jay
David Holt wrote: > I've found the LM394s at Digikey for my VCOs, but they're the can > package. Meanwhile, the holes in the PCB are not in a circle, like a > can, but inline, like a DIP package. Are the leads long enough to > accomodate bending to go in the right holes? Yep. But
2006-10-28 by contact@bridechamber.com
The Bridechamber has both ;) www.bridechamber.com Scott contact@... ----- Original Message ----- From: David Holt To: cgs_synth@yahoogroups.com Sent: Saturday, October 28, 2006 5:38 PM Subject: [cgs_synth] LM394s and Tempcos I've found the LM394s at Digikey for my VCOs, but they'
2006-10-28 by David Holt
I've found the LM394s at Digikey for my VCOs, but they're the can package. Meanwhile, the holes in the PCB are not in a circle, like a can, but inline, like a DIP package. Are the leads long enough to accomodate bending to go in the right holes? Also, where could one find the 1k
2006-10-28 by sasami@hotkey.net.au
All are decouplers. Ceramic is fine. The larger spacing is merely because it had more tracks to span. Ken >On the parts list, there are 2 100n caps listed (aside from the SMDs), >but there are 4 of them on the actual board. Are these all ceramics? >One of them (the one by the tri
2006-10-28 by David Holt
On the parts list, there are 2 100n caps listed (aside from the SMDs), but there are 4 of them on the actual board. Are these all ceramics? One of them (the one by the trimmer just below the "split") has a larger lead spacing than the other three. Anything I need to know here?
2006-10-28 by sasami@hotkey.net.au
Correct reference. R-Gain replaces the level pads. It is doing the same function. Ken >Ok, Checked it again, and I made a wrong reference. >I'm refering to what's described on the synthacon page as the level pads. > >Cheers, >Tom > > >--- In cgs_synth@yahoogroups.com , sasami@...
2006-10-27 by Tom Adam
Ok, Checked it again, and I made a wrong reference. I'm refering to what's described on the synthacon page as the level pads. Cheers, Tom --- In cgs_synth@yahoogroups.com , sasami@... wrote: > > R-gain is usually a fixed resistor, or a preset trimmer. It is a > set-once-and-forge
2006-10-27 by sasami@hotkey.net.au
R-gain is usually a fixed resistor, or a preset trimmer. It is a set-once-and-forget type control so you can adjust the filter output to suit your system. Basically it is to compensate for variances in the transistors used in the filter. It does not need to come out to the panel.
2006-10-27 by Tom Adam
I'm going to incorporate this modules and a drum sym in my 9090 project. Alas it turns out, due to the masive amount of panel space of the synare. That I'll have to drop a pot. First of, I included a mixer in my 9090, so I have to bring the levels of the cgs modules to line level
2006-10-26 by Future Image
Nice, I was going to get mine from MFOS, but I'll go with a combination of the two now. Thanks Ken! --- In cgs_synth@yahoogroups.com , "brownchonald" wrote: > > Ken, > > So, I've heard, you are going to be making an envelope generator? > > This would be just what the doctor order
2006-10-25 by janczmok
--- In cgs_synth@yahoogroups.com , sasami@... wrote: > > >Hi, > > > >according to : > > > >"Alternate layout > > Thanks Ken! Just applied the "patches" and everything working now. Great ! --jan
2006-10-25 by sasami@hotkey.net.au
>Hi, > >according to : > >"Alternate layout > >Having had the prototype in my synthesiser for some time now, a >second layout became obvious. Instead of having pots for both the B >channel and the multiplier outputs, I used a 4 pole 2 position switch >to select between the B chan
2006-10-25 by sasami@hotkey.net.au
There is nothing wrong with it. That is merely the response you get with that particular input signal. The pot may well behave rather differently if connected to a different signal source. Ken >I finished the Infinite Melody and its 99% working, my Sense Pot has no affect for the
2006-10-24 by Jan-Ahrent Czmok
Hi, according to : "Alternate layout Having had the prototype in my synthesiser for some time now, a second layout became obvious. Instead of having pots for both the B channel and the multiplier outputs, I used a 4 pole 2 position switch to select between the B channel and the m
2006-10-24 by Jason Proctor
what are you feeding it? j (about to start an IM/DC combo) >I finished the Infinite Melody and its 99% working, my Sense Pot has >no affect for the first 50%, anyone have an idea how to fix this.... > >Other than that another sweet ass CGS module.. > >Chris
2006-10-24 by The Alison Project
I finished the Infinite Melody and its 99% working, my Sense Pot has no affect for the first 50%, anyone have an idea how to fix this.... Other than that another sweet ass CGS module.. Chris [Non-text portions of this message have been removed]
2006-10-24 by brownchonald
Thanks Ken, My first full-fledged CGS VCO is almost complete. If it works like it should, I'll get sound samples and take photos. It'd be an honor to share this work with you, Ken. Cole --- In cgs_synth@yahoogroups.com , sasami@... wrote: > > >What do the processor pots do on the
2006-10-24 by sasami@hotkey.net.au
>What do the processor pots do on the VCO? They are a CV input mixer, but with the added feature of being able to mix the incoming signal as normal, or inverted. Ken > > > > > > >The CGS Modular Synth home page: http://www.cgs.synth.net/ > >Yahoo! Groups Links > > > > > _________
2006-10-24 by brownchonald
What do the processor pots do on the VCO?
2006-10-23 by Jan-Ahrent Czmok
Hi all, i just finished the PCB and the front panel for CGS01 -- The Frontpanel design is like the one found in this Group, and is seen here: http://diy.czmok.de/23.0.html Regarding this setup, i need some help regarding the wirings. A, A/2, A/4, A/8 is clear, same applies to IN
2006-10-23 by janczmok
Hi all, i just finished the PCB and the front panel for CGS01 -- The Frontpanel design is like the one found in this Group, and is seen here: http://diy.czmok.de/23.0.html Regarding this setup, i need some help regarding the wirings. A, A/2, A/4, A/8 is clear, same applies to IN
2006-10-22 by Mike Marsh
Hello All - Sorry for the cross-post. I am selling a Blacet Frac with a Wiard Joystick, Noise Ring, and Borg II, plus a Blacet Time Machine, a DIY CGS 6-IN Mixer and a mult. The rack has a power distro board (PSCONN2) ready to plug in to your existing power supply. I'm asking $1,
2006-10-21 by Scott Deyo
Great. I'm using the PCB-mounted pots, and using the same spacing as CGS. The extra jacks are on the bottom. Can't wait to build one for myself! :) Thanks for the info Chris! Scott Deyo The Bridechamber contact@... www.bridechamber.com On Oct 21, 2006, at 7:46 AM, The Alison Proj
2006-10-21 by The Alison Project
Nevermind, it's early and I just got to work (Yes I work hard ;) ) I undertand what you mean Scott, it will not create much more wiring at all, and that way should definately make room for those who want to use Switchcraft 112A jacks if your using the pcb mounted pots in a MOTM s
2006-10-21 by The Alison Project
I put the switches and LEDs above the jacks also, I dont quite understand what you mean.. give me some more info or your design and I can take a look... chris ----- Original Message ----- From: Scott Deyo To: cgs_synth@yahoogroups.com Sent: Saturday, October 21, 2006 6:59 AM Subj
2006-10-21 by Scott Deyo
Hey Chris, I did a layout for the Prog Seq, 4U I think. I put the switches and LEDs above the jacks (makes more sense to me), which will probably increase the wiring... having built this one, do you think that change is worth the extra effort, or should I just follow Ken's layout
2006-10-21 by Jason Proctor
thanks for the A/D idea. i only need to scan 4 inputs max, so maybe i would scale an incoming +/-5v CV to a range which would just affect the 2 lsbs of the LM3914, then use the outputs to index a cmos 4013 analogue mux or something. the blacet scanner has configurable overlap on
2006-10-21 by data2action
praps you could feed a couple of CGS55 Analog Switch Matrixes with the outputs of a LM3914 LED bar graph driver... bbob --- In cgs_synth@yahoogroups.com , Jason Proctor wrote: > > does CGS have something that will select an output from an input list > based on a CV, like the blac
2006-10-20 by Jason Proctor
does CGS have something that will select an output from an input list based on a CV, like the blacet scanner? also -- thinking of designing it if not. would such a design require a real A/D stage or are there other support-type chips that would help out? tx
2006-10-20 by Rykhaard D.A.M.I.A.N.
Update: hoping I'm doing math correctly. ;) On 10/20/06, sasami@... sasami@... > wrote: > > Use 1k resistors - this will give you 100 to 1 ratio across the sweep of > the > pots. Increase the 10n capacitors to 100n to bring the frequency back to > something usable. Watch the 74C1
2006-10-20 by Rykhaard D.A.M.I.A.N.
On 10/20/06, sasami@... sasami@... > wrote: > > Use 1k resistors - this will give you 100 to 1 ratio across the sweep of > the > pots. Increase the 10n capacitors to 100n to bring the frequency back to > something usable. Watch the 74C14 doesn't get too hot. It shouldn't get > ho
2006-10-20 by Rykhaard D.A.M.I.A.N.
Ooops. Please pardon the half-awake braindeath. :O I just restored a crashed Firefox 2 (preview) session, and saw a message to the list sitting in 'Draft' (unsent). I immediately brought it up and clicked on 'Send' without checking to see that it were only a partial message. :O D
2006-10-20 by sasami@hotkey.net.au
Use 1k resistors - this will give you 100 to 1 ratio across the sweep of the pots. Increase the 10n capacitors to 100n to bring the frequency back to something usable. Watch the 74C14 doesn't get too hot. It shouldn't get hot at all, but if it does, increase the 1k resistors to 2
2006-10-20 by Rykhaard D.A.M.I.A.N.
What values of resistors have you found to be the most useable, for the 6 'voices' in the Cynare? I'll have mine hooked up completely before work tomorrow afternoon, but I thought I'd ask what others have found to be useful values. :) I'm going with a 100k pot, for each of the vo
2006-10-20 by The Alison Project
Finished installing the pushbuttons in my Programmer Sequencer, CPO jack still not working. For those who requested pics, built from BrideChamber panels fixed together, perhaps in future i'll do an FPE panel, but I am in no rush. http://thealisonproject.com/images/prog-seq.jpg di
2006-10-18 by Pete
Very cool Ken. Thats just what I need! pete -- http://www.myspace.com/23isgood [Non-text portions of this message have been removed]