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2006-06-04 by sasami@hotkey.net.au
Blue LEDs are subject to failure from static, though this probably wasn't the case this time. More likely I'd say it was a thermal issue causing a break in the internal LED wiring. Ken >This is sort of off topic, but may be of interest. I had to replace the >power LED in my compu
2006-06-04 by Richard Brewster
This is sort of off topic, but may be of interest. I had to replace the power LED in my computer. The original was bright blue. Its failure mode was that for several weeks it was intermittent and would flicker, sometimes on, sometimes off. Then it died for good. I checked out the
2006-05-29 by The Alison Project
I took out the Texas Instruments TL074 and replaced it with a Texas Instruments LM324 and it works fine now,,,, thanks for your help once again... ----- Original Message ----- From: sasami@... > To: cgs_synth@yahoogroups.com > Sent: Sunday, May 28, 2006 10:46 PM Subject: Re: [cgs
2006-05-29 by sasami@hotkey.net.au
Up adn down use two different circuits. In down mode "preset" is used to set the sequencer to the last position. Check the circuitry around pin 1 of the counter - there is a transistor inverter and a diode involved. Ken >Alright, my Burst Generator is now in order, I finished the
2006-05-28 by thealisonproject
Alright, my Burst Generator is now in order, I finished the Sequential Switch today, everything works but the reset switch and push button have no effect when running in the backwards (down) position... Any ideas??? Thanks Chris
2006-05-28 by sasami@hotkey.net.au
There is a 10k missing from the schematic here too. Th board and wiring diagram, however, are correct. Ken >If you have output level problems with the Bi-N-Tic this may be your >problem. The wiper and top of the Damping pot are reversed on the >Bi-N-Tic filter schematic. I though
2006-05-28 by Mike Marsh
Right, I thought perhaps if you tapped off different pins something clever could happen. Sorry for the waste of bandwidth! I know that with separate S&H's more is possible in this area... Mike --- In cgs_synth@yahoogroups.com , sasami@... wrote: > > all stages are tied together v
2006-05-27 by sasami@hotkey.net.au
all stages are tied together via a single chip. When one changes, they all change. I guess if you connect the output of a stqage to an external sample and hold, you could gain some sort of delay. Ken >Hello All - > >Can anyone coem up with a way to alter the ASR for a delay on th
2006-05-27 by Mike Marsh
Hello All - Can anyone coem up with a way to alter the ASR for a delay on the tigger at each stage? I would envision 3 pots, each controlling the amount of delay at each stage. Is this possible/do-able? Mike
2006-05-27 by Richard Brewster
If you have output level problems with the Bi-N-Tic this may be your problem. The wiper and top of the Damping pot are reversed on the Bi-N-Tic filter schematic. I thought it looked odd, but I wired it as shown at first. This is the symptom: the damping pot has a working range on
2006-05-27 by sasami@hotkey.net.au
I expect the higher number of pulses you have selected before moving the switch, the lower number it will give upon moving the switch, if you move the switch downwards. If you move it upwards, it will probably pulse once per step you have moved upwards. (if that isn't totally con
2006-05-26 by The Alison Project
Alright so is that normal, sometimes when I switch the rotary it lets out one pulse, sometimes up to 5 or 6.. ----- Original Message ----- From: sasami@... > To: cgs_synth@yahoogroups.com > Sent: Friday, May 26, 2006 6:21 PM Subject: Re: [cgs_synth] Re: Burst Generator problem? A
2006-05-26 by sasami@hotkey.net.au
Actually, now that I think about it, when you move the switch, you release the hold line, so it's free to continue. Mind you, the switch needed prelacing anyway. The wrong switch could damage the chip. Ken >I replaced the Shorting Rotary with a Non-Shorting and I still get the >s
2006-05-26 by thealisonproject
I replaced the Shorting Rotary with a Non-Shorting and I still get the same thing.... Anyone have any ideas?? --- In cgs_synth@yahoogroups.com , sasami@... wrote: > > Yes, use a non-shorting rotary. As its, you are causing a connection between > a high and a low at the point of c
2006-05-26 by The Alison Project
Thanks Ken, I will pick one up today... None the less has a great time fooling around with it last night. Chris ----- Original Message ----- From: sasami@... > To: cgs_synth@yahoogroups.com > Sent: Friday, May 26, 2006 7:23 AM Subject: Re: [cgs_synth] Burst Generator problem? Yes
2006-05-26 by sasami@hotkey.net.au
Yes, use a non-shorting rotary. As its, you are causing a connection between a high and a low at the point of chaninging, and anything could happen. As a rule, always use break before make switches. Ken >Last night I finished the Burst Generator, everything seems to work >fine ex
2006-05-26 by thealisonproject
Last night I finished the Burst Generator, everything seems to work fine except sometimes when I am switching pulses my Burst Gen will automatically set off a series of pulses, this seems to only happen once if the pulse rotary is switched after the manual trigger or trig jack ha
2006-05-22 by Jeff Foster
thanks for clearing that up. -Jeff --- In cgs_synth@yahoogroups.com , "Josue Arias" wrote: > > Hi Jeff, > > They have a kind of "stop ring" so a 12 step rotary switch can be anything > from 1 to 12 steps. > > Best Regards, > > Josue. > > > 2006/5/22, Jeff Foster : > > > > hi all,
2006-05-21 by Josue Arias
Hi Jeff, They have a kind of "stop ring" so a 12 step rotary switch can be anything from 1 to 12 steps. Best Regards, Josue. 2006/5/22, Jeff Foster spgjmf@... >: > > hi all, > I have a simple parts question regarding the gate seq. > I am making one up as a simple basic 8 stage se
2006-05-21 by Jeff Foster
hi all, I have a simple parts question regarding the gate seq. I am making one up as a simple basic 8 stage sequencer. the seq length rotary switch needs to select one of eight stages, but the parts list says 12 postion apha pot. what am I missing ? I find several 12 postion swtc
2006-05-21 by Richard Brewster
I am finishing mine, finally. I found an error in the clock coupling circuit etch. The diode that is supposed to clamp the voltage on the transistor base is not connected to the base of the transistor, but rather to the opposite end of the 100K series input resistor. I fixed this
2006-05-20 by Rune Sagevik
Thanks a lot. I`ll definately check this out. I`m not particularly trained in electronics, so I have to do a couple of trial and error projects to get comfortable with the whole DIY stuff. I thought I`d try to make the most basic version work first, and then I`ll try and modify i
2006-05-20 by Rune Sagevik
> I expect you are talking about the 'All Input'? that input is actually just > connecting a single input to the lowpass, highpass, and bandpass inputs. No I was thinking of an actual mixer part where you have a level knob for each input. I guess it is just to put in the right po
2006-05-19 by Richard Brewster
Here is a schematic for the CV inputs that some of us have used: http://www.pugix.com/bottom-cabinet-lower.htm#synthacon http://www.pugix.com/images/steinervcf-mod-mine.gif Richard Brewster Ryan Williams wrote: >I expect you are talking about the 'All Input'? that input is actual
2006-05-19 by Ryan Williams
I expect you are talking about the 'All Input'? that input is actually just connecting a single input to the lowpass, highpass, and bandpass inputs. the filter itself acts as a sort of mixer for those signal. just connect that jack to each of the other jacks, normally closed cont
2006-05-19 by Rune Sagevik
Hello everybody. I just received my Synthacon PCB from Ken, and a couple of questions suddenly came up.. I must admit that I`m a total newbie to DIY synth, with no eelctronics skills whatsoever.. (I`ve built one simple module so far.. thats all) I`ve seen several solutions around
2006-05-17 by Andrew Scheidler
In the Sequential Switch article, it mentions that the counter (4516) is a 16 step counter, but is only used to count 8 steps. Could the existing SS circuit be modified to be 16 steps long? Maybe by using a second PCB to hold parts that need to be duplicated? I am interested in a
2006-05-16 by sasami@hotkey.net.au
The CGS VCO emulates the very first Serge VCO with the simple wave shaper, not the NTO. As such, they will sound different. Ken >Hi, > >Anyone ever have a chance to compare the CGS VCO and a Serge NTO? > >I'm curious if they sound very similar or have a different overall tone. >I
2006-05-16 by Tim J
Hi, Anyone ever have a chance to compare the CGS VCO and a Serge NTO? I'm curious if they sound very similar or have a different overall tone. I'm thinking of building a couple of CGS VCOs to expand my humble Serge system. That said, its not terribly important they sound exactly
2006-05-14 by sasami@hotkey.net.au
I'm hoping for this week. Time will tell. Ken >Ken, >Do you have a date when the next patch of ASR boards will >be ready for purchuse? > >-Jeff > > > > > > > >The CGS Modular Synth home page: http://www.cgs.synth.net/ > >Yahoo! Groups Links > > > > > > > _________________________
2006-05-14 by Jeff Foster
Ken, Do you have a date when the next patch of ASR boards will be ready for purchuse? -Jeff
2006-05-13 by Laurie Biddulph
If you read the schematic carefully you will see that there are 10 jacks shown for the Wave Multiplier itself. The PCB also includes the Simple Wave Folder which requires an additional 3 jacks giving the correct total of 13. I do state on my website that my kits are for the FULL
2006-05-13 by boward_k
Okey..must be a missprint in the elbys part list..as in the 13 jacks in the elby kit, but only 9 in Ken´s parts list. Should the wiring base on Ken's Schematic? And what are the values on the "drive and lag" pots? > >Hi, whats the difference between "Ken Stone´s" and Elby Designs
2006-05-12 by sasami@hotkey.net.au
>Hi, whats the difference between "Ken Stone´s" and Elby Designs kit >version of the wave multiplier? None. The Elby kit is a Ken Stone PCB with parts as needed. >And also: is there any chance you could get hold of a more "pictured" >schematic on the VCO´s wiring,(this also is a
2006-05-12 by Jeff Foster
thanks Jeff, I check your suggestion against my schematic and see if i understand. chnaging R1173 sound right...more control. thanks again, Jeff ( Foster) --- In cgs_synth@yahoogroups.com , "jeff brown" wrote: > > >I have a pro one synth (first synth bought, still going after 25
2006-05-12 by Laurie Biddulph
Ken doesn't usually offer kits, he only provides the PCB and the design. Elby Designs, in agreement with Ken Stone, offers you the Component Kits (and optional PCB) for these designs. Although not high on my priority list I do intend to redraw some of the schematics for better re
2006-05-12 by boward_k
Hi, whats the difference between "Ken Stone´s" and Elby Designs kit version of the wave multiplier? And also: is there any chance you could get hold of a more "pictured" schematic on the VCO´s wiring,(this also is a elby designs VCO-kit)
2006-05-11 by Jason Proctor
hey -- this sounds like crazy fun. could you post the complete patch by any chance? i'm interested in including some crazy cv/trig modules in my currently mainly audio modular. on the midiclock->trigger issue, mr blacet has a PIC and some circuits that do just this. i'm just abou
2006-05-11 by c10h14no2i
Thanks for posting the link.. I only get a chance to read my mail about once a week lately. But yeah, the ASR and the Sub Osc are the important parts for making this tune. The clock comes from a CGS utility LFO. Its really fun to mess w/. Little changes of the pulse shape from th
2006-05-09 by Richard Brewster
To answer the question, you would need a DUAL op amp. You described an inverting buffer with a gain of 3.3. So if you put +5V into it, you would get -16.5V out theoretically. But you can't ever get more that about 14.5V positive or negative from an op amp with +/-15V power suppli
2006-05-09 by jeff brown
>I have a pro one synth (first synth bought, still going after 25 >years) and I like to modulate the vcf from other voltage sources. The >vcf cv input looks like it wants 0-15v, based on the schematic. I assume it's the Sequential Circuits Pro One. And you are referring to the ex
2006-05-09 by Jeff Foster
hi folks, This is OT from CGS, although related being that the modules are used :-) I have a basic fundamental question which will reflect my less than ideal foundation in electroinc design. I have a pro one synth (first synth bought, still going after 25 years) and I like to mod
2006-05-08 by Jeff Foster
thanks for the info ... like it. plus the Pro one mods.... best, Jeff --- In cgs_synth@yahoogroups.com , Tom Adam wrote: > > JEff, > > Here's a link to the Neural Agonizer: > http://www.tellun.com/motm/diy/tln156/TLN-156.html > > Here some samples of my Neural Agonizer: > http://
2006-05-08 by Tom Adam
JEff, Here's a link to the Neural Agonizer: http://www.tellun.com/motm/diy/tln156/TLN-156.html Here some samples of my Neural Agonizer: http://users.pandora.be/the-big-ear/temp/NA-1.mp3 http://users.pandora.be/the-big-ear/temp/NA-2.mp3 http://users.pandora.be/the-big-ear/temp/NA-
2006-05-08 by Pete
Hey Scott. I have to agree. Very cool little tune. I like the random melodies. I gotta get myself some ASR's too! On 5/7/06, Jeff Foster spgjmf@... > wrote: > > > hi Scott, > nice upload file, I enjoy "system" generted music too. > > btw what is 'TLN neural aganozer (reverb)' ? D
2006-05-08 by Jeff Foster
hi Scott, nice upload file, I enjoy "system" generted music too. btw what is 'TLN neural aganozer (reverb)' ? DIY ? what ;-) now i have to get a shift register..but they are out of stock. JEff --- In cgs_synth@yahoogroups.com , "c10h14no2i" wrote: > > I just wanted to thank you a
2006-05-06 by djbrow54
Finished it yesterday. This filter is great! New photos on the web page. Dave --- In cgs_synth@yahoogroups.com , "djbrow54" wrote: > > I got my FrontPanelExpress panel today. It came out the best of all > my DIY panels. Photo on my page at: > > http://modularsynthesis.com/modules
2006-05-04 by c10h14no2i
I just wanted to thank you all for helping me over the past few months w/ my synth. Its still got a tun of bugs to work out, but it already makes me endlessly happy. I've uploaded a file of music that it created to the CGS yahoo group file area titled "mysynth.mp3" I say music "i
2006-05-04 by djbrow54
I got my FrontPanelExpress panel today. It came out the best of all my DIY panels. Photo on my page at: http://modularsynthesis.com/modules/cgs/cgs.htm Now to move it from my prototype panel and complete the wiring. Dave
2006-04-30 by Laurie Biddulph
The requirement is for a 2-pole 5-way switch. As standard all rotary switches come as a combination of 12 i.e. 1P12W, 2P6W, 3P4W. They all come with a stopper plate which lets you limit the rotation. By setting, in this case, to the 5 position you will have a 2P5W action from a 2