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2009-02-23 by Jason Proctor
hey Richard, i don't think plans for selling the assembled MOTM VCS crystallised into anything, but in any case a number of MOTM format PCBs were produced and these were offered by Seth on various lists a while back. the circuit is the Serge one brushed up by Ken, i think. lookin
2009-02-23 by Richard Brewster
Hi Jason, How would we know the values of those? Isn't it a proprietary circuit? Did you buy one and are converting it to a MOTM panel? Richard Brewster Jason Proctor wrote: > i'm putting together the parts for an MOTM format Bananalogue VCS and > i'm wondering if anyone has a go
2009-02-23 by Jason Proctor
i'm putting together the parts for an MOTM format Bananalogue VCS and i'm wondering if anyone has a good part number for the rise & fall pot/switch combos? thanks...
2009-02-22 by Scott Deyo
It should be the same as the new one. I think they're pretty darn similar, but the dimensions are different. You'll need two extra little Mixer boards. Cheers, Scott Deyo The Bridechamber contact@... http://www.bridechamber.com Jealous Edison Record Kompany http://www.jealousedis
2009-02-21 by adaaxs
I have an original suboscillator board (green one w/ 2 rows of resistors) and I am going to add it to a Bridechamber panel with 12 dual pots and 7 toggle switches. I haven't wired it up yet because I am unsure of how to do it. The original board is legended differently from the n
2009-02-17 by Tom Adam
I bought the wavefolder, but I don't know what happened to the other modules. The wavefolder is great BTW. ToAd On Feb 17, 2009 17:23 "casperelectronics" pete@... > wrote: > have you sold the modules? > if not, what are you asking for them? > thanks! > -pete > On Dec 17, 2008, at
2009-02-17 by casperelectronics
have you sold the modules? if not, what are you asking for them? thanks! -pete On Dec 17, 2008, at 10:41 PM, babysealclub wrote: > I'm clearing out all of my projects, many are alraedy on ebay. > Search for 110326071455 and then view my other items. > > I have 3 modules that I ne
2009-02-15 by casperelectronics
thanks for the response. I don't think it's a matter of clipping. I'm sending a 4 volt saw wave to sub osc. channel A. I have 1, /2, / 4, & /8, turned all the way up and I'm getting an output of .25 volts. It has the same ratio on channel B as well. I've switched out the op amps
2009-02-14 by otherunicorn@gmail.com
You would be better increasing the 22k on the previous stage to 47k to add more gain. Don't forget that when you mix a lot of signals together, the output will clip as the sum of the signals will now be greater than the available voltage. >just built the sub osc. great module. th
2009-02-14 by casperelectronics
just built the sub osc. great module. there seems to be something like a 50+% volume drop from pre to post sub osc. Am I missing something? why is this? it looks like the first amp stage increases the volume of each input considerably.. . . should I just change the value the last
2009-02-05 by otherunicorn@gmail.com
Due to our govenment's incompetence, sections of the power grid where I live have been offline for several days. Unfortunately, the mailserver I use happens to be in one of these "black holes". sasami@... does not work at the moment. In the mean time, try emailing me at otherunic
2009-02-03 by Ove Ridé
Hello, today I looked at the circuit for the Analogic Logic modules. Here are my first impressions, in order: 1) Cool idea, but won't the signal be distorted because the diodes are exponential amplifiers? 2) Ah right, the diode in the feedback path takes care of that. 3) Wait, th
2009-02-02 by l_weegi
Can anybody point me to where I can read or see how to wire up the D.C. mixer and Super Psycho LFO?
2009-01-26 by mathroutine
I don't have the time or skills to troubleshoot this. Some sections are working, some are not. PM/email me and we can discuss the details. Thanks for the space.
2009-01-23 by Ken Stone
You either have a part in backwards, the power connected backwards, or perhaps (and highly unlikely) a faulty part. If it has happened to more than 1 part in the same location, it is definitely something you are doing wrong. --- In cgs_synth@yahoogroups.com , "alll_78" wrote: > >
2009-01-23 by Jon
Hi, If you get magic smoke it's often due to a short or something in the wrong position. Check and check and double check again? The frequency range can be adjusted if you read on the Synthacon page you can see how: http://cgs.synth.net/modules/cgs35_syntha_vcf.html "FREQ knob ad
2009-01-17 by alll_78
Hello to all, I'm having a few problems building the two modules in the subject... I finished soldering and wiring the Super Psycho modulation source, checked many times the correct position (and polarity) of all the components, the board presents no failure at all, and soldering
2008-12-31 by sasami@hotkey.net.au
Excellent! It was a problem I still hadn't had time to check out. It was spotted by a gentleman who was studying the circuit diagram and comparing it to the board. He found several errors. Most were errors on the Schematic, though that one was obviously on the PCB. >SHAZAAM!! tha
2008-12-31 by data2action
SHAZAAM!! that was it... switched in the 470k, and now she's flawless! thanks, Ken! bbob --- In cgs_synth@yahoogroups.com , sasami@... wrote: > > Argh! Typo. It is the resistor between the two BC557s. > > All Type B boards that do not have a revision number have an error. > Physi
2008-12-31 by sasami@hotkey.net.au
Argh! Typo. It is the resistor between the two BC557s. All Type B boards that do not have a revision number have an error. Physically between the two BC557s on the PCB is a 47k resistor. This should be 470k, and will solve problems some of you are having with the common pulse out
2008-12-31 by sasami@hotkey.net.au
All Type B boards that do not have a revision number have an error. Physically between the two BC547s on the PCB is a 47k resistor. This should be 470k, and will solve problems some of you are having with the common pulse out. Electrically it forms the upper leg of a voltage divi
2008-12-18 by babysealclub
I'm clearing out all of my projects, many are alraedy on ebay. Search for 110326071455 and then view my other items. I have 3 modules that I never got around to fixing. Oakley Wavefolder issue 3 Schaffer Panel. I suspect the CA3280 is bad, but I don't have another around. CGS/Bri
2008-12-13 by babysealclub
Bunch of cool CGS stuff on ebay. Check out item 110326066333 and my other items. Thanks, Todd
2008-12-08 by sasami@hotkey.net.au
After the 15th of December I am having my Christmas break. Between then and the new year I will accept orders but I will not ship them. The pre-Christmas rush is a bad time to be mailing orders, due to long delays at the post office, and higher chances of the mail getting lost en
2008-12-07 by waynerdlance
Dave. thanks alot for this info. this is pretty much exactly what im looking for. all i can really find available new are the diode matrix type keyboards and now i guess ill just have to convert one. thanks a bunch. Lance Iden --- In cgs_synth@yahoogroups.com , Dave Kendall wrote
2008-12-06 by Dave Kendall
Hi. I haven't tried this, but these docs might be of use. They show how to convert an old casio keyboard for CV/gate use. The second is a collection of notes from the old (now defunct) EFM forum. Some EFM B.O.M.s had the odd wrong value - go by the schemo. They were also designed
2008-12-06 by x24holsey
Doepfer posts the schematic of the internal workings of the Fatar assembly. Not complicated but plenty of parallel switch closures with diodes from the 2x61 notes shown. The system is scanning all the contacts looking for closure of each specific switch pair which have a midi not
2008-12-06 by waynerdlance
i actually posted on a couple forums. now that i read the first post i wasnt to specific. thanks for your input and im curious what the actuall switch mechanism.s consist of on a midi keyboard. maybe it could be adapted. anyways anyone with a schematic or a password to dowload a
2008-12-06 by waynerdlance
i actually posted on a couple forums. now that i read the first post i wasnt to specific. thanks for your input and im curious what the actuall switch mechanism.s consist of on a midi keyboard. maybe it could be adapted. anyways anyone with a schematic or a password to dowload a
2008-12-06 by x24holsey
Lance, Since we're on the cgs-synth mail group I thought you were referring to Ken's small mini keyboard project board. Your verbage suggested the MFOS board mind you. You used to be able to buy when Pratt-Read was the keyboard manual supplier to the planet, such an item. Most I
2008-12-06 by waynerdlance
im actually looking for a keyboard that would be compatible with the mfos 1v/oct keyboard controller pcb. ive seen the fatar keyboards on the doepfer site but i cant find a schematic for the actual outputs of the keyboard. im looking for a single buss keyboard? i dont really want
2008-12-06 by x24holsey
--- In cgs_synth@yahoogroups.com , "waynerdlance" wrote: > > hey just wondering if anyone knows of a source for compatible keybaord assemblies for use > with the keyboard controller. im looking for something new (dont really want to dissect other > keyboards) any leads would be g
2008-12-06 by casperelectronics
I am using the CGS board... so no 1-4 connection needed. I very well may have burnt my cap though. I found after lots of debugging that there was somehow a gap in one of leads that I had missed and that 2/3 of my ICs weren't connected to ground. I powered the module up a bunch of
2008-12-06 by Scott Deyo
Did you connect pins 1 and 4 of the 311? There's a note on the PCB page, but if you're like me you may have missed it. This only applies to the Bridechamber version of the PCB, by the way. Neither of you burned out your polystyrene cap, did you? I've done that twice lately. Scott
2008-12-06 by waynerdlance
hey just wondering if anyone knows of a source for compatible keybaord assemblies for use with the keyboard controller. im looking for something new (dont really want to dissect other keyboards) any leads would be greatly appreciated. Thanks Lance Iden
2008-12-04 by casperelectronics
I've replaced the 4051s and the 4024. The 4051s were MPF4051 and I replaced them with CD4051. The vco pitch goes sub audible. low low lowwww. -pete On Dec 3, 2008, at 2:00 AM, andrewlistmayer wrote: > I'm not too sure if the 3140 would be causing your problem, but I > wouldn't ex
2008-12-04 by casperelectronics
Thanks for the feedback. The VCO square wave output becomes distorted for one half of a degree of a turn then just cuts off if I turn it up any further. The board is REV 1.2. I'm using a 2N4091 and 2n2 styrene cap. I had used an MPF102 tran before, but that didn't work at all. -p
2008-12-03 by sasami@hotkey.net.au
Any clocking issue usually relates to the transistor/capacitor coupling between the VCO and the counter. If the VCO continues up after the filter stops, look there. Make sure you are not using one of the ancient prototype boards! I made the mistake of giving a few away, and they
2008-12-03 by andrewlistmayer
I'm not too sure if the 3140 would be causing your problem, but I wouldn't expect so. If you are getting 3 clean square waves from the 4024, but they are not clocking the filter, I'd check the 4051's. About the bleeding problem, maybe try removing the 4051's and 4024 and see if i
2008-12-03 by x24holsey
--- In cgs_synth@yahoogroups.com , "loopcycle" wrote: > > can someone please provide me with a part number (manufacturer or > mouser is good) for the keyed enclosed .1 dual row power headers for > the euro power distro board? thanks! > Try these links: FCI link @ Mouser , page #
2008-12-02 by loopcycle
can someone please provide me with a part number (manufacturer or mouser is good) for the keyed enclosed .1 dual row power headers for the euro power distro board? thanks!
2008-12-01 by casperelectronics
Hey, thanks for the response! I discovered a huge problem. Somehow one of the traces on the board was cut and there was no ground connection to the 4051s or the 4024. Connecting fixed a few issues but had no noticeable effect on the VCO leak through problem. I checked the outs of
2008-12-01 by andrewlistmayer
Mine isn`t working properly either, but based on what you said I`m 99.9999% sure your isn`t either. The VCO is supposed to clock the filter, so the frequency of the filter changes with it. When the filter receives no clock from the VCO, it seems to lock to a fixed frequency which
2008-11-29 by Scott Deyo
Hi Pete, It's the basic outputs from the Electronotes/ ASM-1 VCO. I modded a CGS Mixer PCB, but you could probably breadboard it just as simply. http://rubidium.dyndns.org/~magnus/synths/friends/stopp/#7 You can also easily add PWM to the square output this way. Instead of PWM I
2008-11-29 by Richard Brewster
That file link below the you tube link was a copy-paste error in my email client. The you tube link is: http://www.youtube.com/watch?v=WSNfd-TltPM Richard Brewster http://pugix.com
2008-11-29 by Richard Brewster
The Bi-N-Tic is just an amazing device. Technically it is a type of filter, but calling it a filter elicits the wrong association with typical analog modular filters (high, low, and band pass). It doesn't sound anything like those. And you can't use it like those. You need to pla
2008-11-29 by sasami@hotkey.net.au
On this filter, the knobs may respond in a narrow area with one setting of the other knobs, and in an entirely different narrow area with a different setting of the other knobs. It is a weird filter, so I decided to leave the "dead" areas of the pots rather than try to reduce the
2008-11-29 by casperelectronics
Hello everyone. Sorry to continue the Bi-N-Tic questions. I know there have been a lot and I've read them all and I still have a few more. I think I got the whole thing working right but I'm not sure, it's a weird module (as I'm sure you'll all agree) The way it is working now it
2008-11-29 by casperelectronics
Hey Scott, I want to add the wave outputs on my bintic filter but I can't find the info. Do you sell daughter boards/ host schematics for that on your site?? Thanks! -pete
2008-11-28 by Bauke van der Wal
hey hey, i finally finished my super psycho and created an album in the pix- section on yahoogroups. more will definitly follow. cheers, bauke and ps: even if only for the $4 flat rate shipping ken rocks, but i really like the structure and design of the PCB's. you can see it's d