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2005-06-01 by allanjhall
Some of the parts for the CGS48 VCO can be a bit hard to locate in the uk, particularly the n channel Jfet. Alternatives that work are 2N5486 and J112, both available from Farnell. Also, SSM2210 transistor array works in place of LM394, just cut off pins 4 & 5 and it slots straig
2005-06-01 by sasami@hotkey.net.au
The ones I have here are "WH111A-1" though I can't read who made them. They are a taiwanese copy of an ALPS pot. See alpsstore: http://2203.etolldev.net/s- category.asp?supercategory=437&category=2343&supe rcatname=Potentiometers&catname=Rotary The 4 pin sucker up the top of this
2005-06-01 by x24holsey
Has anybody out there got a US based part number equivalent for the pcb mount pots used in the matrix mixer and the sequencer cv adapter? Seems to be absent from the other lists I've seen posted. Mouser works for me. Otherwise, Ken might chime in with the manufacturer name from h
2005-05-31 by flatsix01
Hahah oh hell, I just spent an hour making a panel layout but pots are arranged horizontally.. back to the drawing board! JON --- In cgs_synth@yahoogroups.com , sasami@h... wrote: > I have considered doing a Frac-rack version of this PCB. If you guys put > your heads together and
2005-05-30 by sasami@hotkey.net.au
I have considered doing a Frac-rack version of this PCB. If you guys put your heads together and come up with a panel layout that is suitable, you may even get the pots mounted on the PCB edge. Pots in a single virtical line, please. Ken >I had the same issue, with CGS35 and frac
2005-05-30 by flatsix01
Oh brilliant, that's a good idea... thanks. BTW I've finished populating your Dual VCA board (using as a final vca) and now I need to come up with an appropriate panel for that too :) JON --- In cgs_synth@yahoogroups.com , wrote: > I had the same issue, with CGS35 and fracrack be
2005-05-30 by cgs@oldmail.charlielamm.com
I had the same issue, with CGS35 and fracrack because they are so dissimilar in size/shape. I ended up putting the long/skinny board on perf and mounting the perf to the fracrack. I have some other mods as well but the basic idea is here: http://www.charlielamm.com/synth/steiner/
2005-05-30 by flatsix01
Just finished populating the CGS35 VCF board and I am wondering if any FracRack sized front panel designs are floating around for this board? If not, any suggestions on 'ideal arrangement' of pots/jacks? Thanks! JON
2005-05-30 by Richard Brewster
Since pots are variable anyway, the value can often be substituted with little impact on the circuit. You can often substitute a 47K or 50K pot for a 100K pot and vice versa. I expect that in most CGS modules a 47K pot will work where a 100K is shown, and in most Blacet modules a
2005-05-29 by Andre Majorel
On 2005-05-29 16:37 -0400, Richard Brewster wrote: > Ken's PC board designs give the builder many choices for panel > designs, and this includes deciding what pots and switches you want to > put on the panel. Sometimes you will see optional pots on a hookup > diagram that are not
2005-05-29 by sasami@hotkey.net.au
>I'm a bit confused as to whether the pots appear in the parts >list. Sometimes they do, but often they seem to be completely >ommitted. Someone else has already explained this rather well. Mostly my parts lists are lists of parts used on the PCB itself. Sometimes I will add the
2005-05-29 by Richard Brewster
Ken's PC board designs give the builder many choices for panel designs, and this includes deciding what pots and switches you want to put on the panel. Sometimes you will see optional pots on a hookup diagram that are not shown on the schematic. There was a discussion here about
2005-05-29 by Andre Majorel
Ken, I'm a bit confused as to whether the pots appear in the parts list. Sometimes they do, but often they seem to be completely ommitted. As part of preparing a life time order of components before the impending Great Extinction, I'm writing scripts to go over various parts list
2005-05-28 by Adam Schabtach
> are all of the cgs mmodule pcb's short enough to fit into a doepfer > system? If you mean mounting the PCBs vertically, no. I have two CGS PCBs at hand that are both longer than 3U is tall. You'd have to mount them perpendicular to the front panel. > also how > should i go abou
2005-05-28 by danv_83
--- In cgs_synth@yahoogroups.com , "danv_83" wrote: > are all of the cgs mmodule pcb's short enough to fit into a doepfer system? also how > should i go about installing faceplates with the kits? has anyone here heard both cgs > oscillators and ele4music - opinions very appreciat
2005-05-24 by danv_83
are all of the cgs mmodule pcb's short enough to fit into a doepfer system? also how should i go about installing faceplates with the kits? has anyone here heard both cgs oscillators and ele4music - opinions very appreciated. i am not that happy with the standard doepfer oscillat
2005-05-20 by djbrow54
I started to put together a page for my Bi-N-Tic filter PT2395 echo, and the mini keyboard projects. I'm starting first by creating the parts list. I haven't yet built the boards but these are the parts I selected and ordered from Mouser. I'll update these as the projects progres
2005-05-19 by allanjhall
Thanks for the tuning mod info Charlie, very useful. Some good stuff on your site too, nice work! Cheers, Allan --- In cgs_synth@yahoogroups.com , wrote: > The ASM VCO tracks well at High Frequencies, at least the ones I > have built are good in this regard. > > BTW, not sure if
2005-05-18 by cgs@oldmail.charlielamm.com
The ASM VCO tracks well at High Frequencies, at least the ones I have built are good in this regard. BTW, not sure if this helps, but, Magnus Danielson suggested to me, when I was building ASM VCOs (very similar in their core design to what Ken has), to put a 10K multiturn trimme
2005-05-18 by allanjhall
Many thanks for the help Ken, hadn't realised there was so much information on that site. I've a much better understanding of the VCO core now, its a very clever oscillator design..... Allan --- In cgs_synth@yahoogroups.com , sasami@h... wrote: > Go to the site that has the origi
2005-05-17 by hitchindave
Hi All. Anyone know of a cheap source for the 74C922 used in the CGS10 mini pedal board? The ones I've found here in the UK so far, are about US11$ each or more. Alternatively, anyone got any ideas what they might be used in, for salvage purposes? all I can think of is maybe entr
2005-05-17 by Richard Brewster
Thank you! I have placed my order. -Richard Laurie Biddulph wrote: >Hi Richard, > >I have added the Bi-N-Tic Filter Special components kit to my shopping cart >under `Others' > >Best Regards > >(Mr) Laurie Biddulph > >Elby Designs >ABN: 70 022 727 605 > http://www.elby-designs.co
2005-05-16 by Jeff Brown
Wow! Very Nice! --- In cgs_synth@yahoogroups.com , "allanjhall" wrote: > Hi, > > I've just posted a picture of my completed infinite melody module to > the Yahoo Photo's area in the Allan Hall folder. I've built the > Infinite Melody generator with all three Diatonic converter bo
2005-05-16 by sasami@hotkey.net.au
>The CGS04 DC Mixer looks fine for this application, I guess I'd need >to use audio taper pots in the mixer rather than linear as these are >essentially audio signals? Stick with linear pots. My other sub-oscillators all use linear pots, and are quite useable with that configurat
2005-05-16 by sasami@hotkey.net.au
Go to the site that has the original article and read about R* (the 680R) http://home.att.net/~synthsource/ens76/vco3.htm This provides the high frequency compensation. Ken _______________________________________________________________________ Ken Stone sasami@... or sasami@...
2005-05-16 by allanjhall
Hi, I've just posted a picture of my completed infinite melody module to the Yahoo Photo's area in the Allan Hall folder. I've built the Infinite Melody generator with all three Diatonic converter boards into Doepfer rack format (but with +/- 15v power) I've also added a single t
2005-05-16 by allanjhall
I'm building the CGS48 VCO and also looking at the ASM-1 filter core on which it's based. Unlike many VCO's it doesn't have any HF tracking ajustment, so I'm wondering how well it tracks at higher frequencies? The design looks simple compared with some other VCO's; but this isn't
2005-05-16 by allanjhall
Hi all, I'm planning my Bi-N-Tic to have all options, including the option of using it as a VCO with sub outs. I was considering adding a mixer to the sub outs with separate volume pot for each sub, which would buffer them and allow a mix of all four subs to be added to VCO outpu
2005-05-16 by peng3002
--- In cgs_synth@yahoogroups.com , Richard Brewster wrote: > Note that the > "Offset CV" mixes with the Triangle and Square inputs, as well as with > the Offset pot voltage, which means that this is another signal input > and is not limited to "offset cv". I never noticed that be
2005-05-16 by sasami@hotkey.net.au
>Quick question and i doubt i can do it but can cv mod be applied? Not with this particular filter. There is nothing to stop people cascading six VCFs though. Six steiners anyone? Perhaps a State Variable would be more suitable. Seriously, doing so has been on the drawing board e
2005-05-16 by bambam4236
Hey guys finished my 6 in 1 bandpass filter module on the weekend and WOW im impressed, I have the 6 filters in a double .com panel and have decided to put the mixer in a seperate single width panel with the bandpass all filter in and out jacks at the top and 5 or 6 (depends on s
2005-05-15 by Laurie Biddulph
Hi Richard, I have added the Bi-N-Tic Filter Special components kit to my shopping cart under `Others' Best Regards (Mr) Laurie Biddulph Elby Designs ABN: 70 022 727 605 http://www.elby-designs.com This e-mail and any files transmitted with it are confidential and intended for th
2005-05-15 by supisuzoi
ah... ok, i see, that's a much better situation then! really, thanks for clarifying that. i apologize for having not seen the guidelines. soggy --- In cgs_synth@yahoogroups.com , "Laurie Biddulph" wrote: > The AUS$19 calculated by the shopping cart is based on insured airmail to
2005-05-15 by Richard Brewster
Mr. Biddulph, I have a question about ordering VCO parts. Your order form allows to order the 1K TEMPCO resistor (kit with 62R), and in another place to order the Special Components for ASM-2 VCOs, which includes: 2 TEMPCO resistor kits 2 MAT-02/LM394 3 J108 FET I bought this Spe
2005-05-15 by Richard Brewster
There's a Simple Wave Folder on the Wave Multiplier PCB? Oh, now there is! I have an older board. Adam, there has been a Stooge panel for the CGS-29 Wave Multiplier for some time now. It has seven pots.. In addition to the four pots shown on the schematic there are three attenuat
2005-05-15 by Laurie Biddulph
The AUS$19 calculated by the shopping cart is based on insured airmail to the US and is (as stated in the closing comment of the shopping cart and in the guidelines) based on the worst case scenario in terms of packaging size and weight. Although it would be nice if the shopping
2005-05-15 by supisuzoi
Did you really pay AUD$19 shipping for them? I was going to order from them, too, until I saw that fee... sadly, it may be the only option. soggy --- In cgs_synth@yahoogroups.com , "Bob" wrote: > > Thanks for all the help with the tempcos, I orderd a pair from ELBY > Designs... I
2005-05-14 by ps_minor
> As mentioned, see the circuit diagram - it's there for a reason! yes, of course. sorry! i've stared at that diagram so many times i can't believe i didn't notice that part. > 100k Wire them the same as the 100k Freqency pot, except instead of > connecting the Clockwise end to p
2005-05-14 by sasami@hotkey.net.au
>one question about pots though. i've been searching the archives and i can't find an >answer.. which pot goes where? does 100k >control freq or resonance? As mentioned, see the circuit diagram - it's there for a reason! >also, i see many have added a pot to the LP/BP/HP inputs.
2005-05-14 by Adam Schabtach
I'm about to start on a Synthacon filter also, but only one of them. > one question about pots though. i've been searching the archives and i > can't find an > answer.. which pot goes where? does 100k > control freq or resonance? Peering at the schematic, it looks like the 100k p
2005-05-14 by Adam Schabtach
Greetings, all-- I'm about to start building a CGS Wave Multiplier, and I'm wondering about the pots labeled as "Optional" in the hookup diagram. I would be very happy to hear opinions from other Wave Multiplier users as to whether these optional parts are useful, essential, extr
2005-05-14 by ps_minor
well i have my synthacon boards (thanks ken!) and i'm ready to get started. looks like all the parts are available from mouser, excellent. i'm ordering plenty of transistors to try to match a pair of each for this stereo unit. (thanks richard for the the info you posted on this s
2005-05-12 by sasami@hotkey.net.au
>Ken, >found this in my archive, i think it is what you are looking for: Exactly. Thank you. Ken >>Can someone give a pinout for the 6-pin power connector? Thanks. > >pin 1 = +15 >pin 2 = GND >pin 3 = GND >pin 4 = -15 >pin 5 = digital GND >pin 6 = +5V > __________________________
2005-05-12 by djbrow54
We've taken feedback and rev'd the Bi-N-Tic filter for the next stooge panel run. I've replaced it in the files section with a (RevB). Comments? Dave --- In cgs_synth@yahoogroups.com , "djbrow54" wrote: > I really liked Richard's design for the CGS Bi-N-Tic > filter with the sub
2005-05-12 by Ryan Williams
Ken, found this in my archive, i think it is what you are looking for: -------- Original Message -------- Subject: Re: [motm] +-15, +5 PS connector pinout Date: Thu, 24 Jun 2004 18:09:05 -0600 From: Scott Juskiw scott@... > To: David Moylan dave@... >, MOTM List motm@yahoogroups.
2005-05-12 by sasami@hotkey.net.au
can anyone give me the details of the power connector for the MOTM 950. Specifically, I want the pin order. Ken _______________________________________________________________________ Ken Stone sasami@... or sasami@... Modular Synth PCBs for sale http://www.blaze.net.au/~sasami/s
2005-05-11 by ed.j.wise
i know that this has been mentioned before ...so i serched the archives and not much info on here how is everyone laying out their Cgs VCO ? how many jacks ? what i came up with was about 14 jacks and that was decent but i want this to be the best that it can be so i need some in
2005-05-10 by jeff brown
Digi-Key ( http://www.digikey.com/) has them, part Number "LM394CH-ND" ----- Original Message ----- From: "Bob" knarleybass@... > To: cgs_synth@yahoogroups.com > Sent: Tuesday, May 10, 2005 3:50 AM Subject: [cgs_synth] Bi-N-Tic Filter and the LM394 > well, > I am trying to get my
2005-05-10 by sasami@hotkey.net.au
Any quality NPN dual tranny should do. The MAT02 can be used if you snip off the two spare legs. Failing that, wack in a pair of 2N3904 until you find someting better. Ken >well, > I am trying to get my parts together and having a rough time locating >the LM394, is there anyone o
2005-05-10 by Bob
well, I am trying to get my parts together and having a rough time locating the LM394, is there anyone out there that knows where to get some? thanks Bob