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2005-02-28 by sasami@hotkey.net.au
> >Ken, > are we going to see more VCO boards anytime soon ? > Soon enough. They will be part of the next run of boards I get done. Ken _______________________________________________________________________ Ken Stone sasami@... or sasami@... Modular Synth PCBs for sale http://ww
2005-02-28 by Bart Provoost
Maybe you need a Gmail invite? :D I didn't introduce myself on this list yet, I'm the guy working on http://filters.muziq.be, a site for effects and modular modules. I started with envelope filters, then added other filter effects (rack & pedals) and after that modular filters. A
2005-02-28 by pugix
If you wish to send me personal email, please use this new Earthlink address. Thanks, Richard Brewster
2005-02-28 by dustin sedlacek
Ken, are we going to see more VCO boards anytime soon ? On 28 Feb 2005 16:15:30 -0000, cgs_synth@yahoogroups.com cgs_synth@yahoogroups.com > wrote: > > > There is 1 message in this issue. > > Topics in this digest: > > 1. offline > From: "Ken Stone" sasami@... > > > _____________
2005-02-28 by Ken Stone
Sorry to any who are trying to contact me today - My email is currently dead, courtesy of some foul-up at the ISP. It's been dead for at least 8 hours. Ken
2005-02-23 by sasami@hotkey.net.au
It should. The ratio is what is important, not the values. Needless to say though, you do not want to have your resistance too low, as you will start to load up the power supply. By too low, I'm talking under 1k. Ken > > >thx for the link ! >that one should work if I use a 5k res
2005-02-23 by stiebz
thx for the link ! that one should work if I use a 5k resistor for XXk as shown in Ken's diagram for the joystick controller ? grtz, Steven --- In cgs_synth@yahoogroups.com , "rdrake" wrote: > Electronic Surplus in cleveland has some, 5k each axis, $4.95: > > http://www.electroni
2005-02-23 by rdrake
Electronic Surplus in cleveland has some, 5k each axis, $4.95: http://www.electronicsurplus.com/commerce/catalog/product.jsp?product_id=71233&czuid=1109186479521 >----- ------- Original Message ------- ----- >From: cgs_synth@yahoogroups.com >To: cgs_synth@yahoogroups.com >Sent: 2
2005-02-23 by stiebz
Does somebody found a partnumber for a good joystick ? they only ones I found are from ALPS ref. RKJXK122000D (available from mouser) they are 10kOhm and only rated for 5VDC, so I doubt if they can be used ? Any alternatives ? thx, Steven --- In cgs_synth@yahoogroups.com , Peng w
2005-02-21 by Ryan Williams
yep he did have one. if you can't find it, let me know and I'll send a pdf with schematics and description. sasami@... wrote: > I think Harry had one that was put up on Tom's EFM site. Possibly in the > archives over there. > > Ken > > > > >Hello, I'm new here :) > > > >Does anyo
2005-02-21 by Richard Brewster
I would have to check my notes on the Lydian Song patch to be sure. They are in a box at the moment, all packed up. I think I used the random mode of the Infinite Melody. I took several of the IM outputs to drive different things. One output went to a Blacet Miniwave where it was
2005-02-21 by sasami@hotkey.net.au
I think Harry had one that was put up on Tom's EFM site. Possibly in the archives over there. Ken > >Hello, I'm new here :) > >Does anyone have any frequency to voltage circuit?.. I've tried goolging for >it but had no luck. It would be used to connect a guitar to a synth. I have
2005-02-21 by Tadas Sasnauskas
Hello, I'm new here :) Does anyone have any frequency to voltage circuit?.. I've tried goolging for it but had no luck. It would be used to connect a guitar to a synth. I have EH guitar micro synthesizer schmatics, but it's a bit beyond my knowledge to produce a working circuit f
2005-02-21 by bbluthang
hi Richard noticed you did well in the bug music comp - congrats!!! (i'm a bug music lover) didn't seem to be many analog diy synths in the winner's gear lists...maybe we're all too busy soldering. did the 1/n melody drive the ASRs or ? andrew
2005-02-20 by Richard Brewster
The Synthesis Technology MOTM-650 4-Channel MIDI-CV converter is about to go into production. Check it out: http://www.synthtech.com/new_stuff.html -Richard Brewster Dave Kendall wrote: >on 19/2/05 11:40 pm, t0ny_mowbray at tmowbray@... wrote: > > >I have a feeling that I "need"
2005-02-20 by Dave Kendall
on 19/2/05 11:40 pm, t0ny_mowbray at tmowbray@... wrote: I have a feeling that I "need" a PolySynth as I am a keyboard player so I will probably look at option around this. There are a few MIDI-CV converters that are polyphonic. Oakley sound http://www.oakleysound.com/polydac.htm
2005-02-20 by Laurie Biddulph
Hi Skye, I am in Australia and can supply a suitable power supply (www.elby-designs.com/power/asm2-powersupplies.pdf) built around the LM723. This comes as a kit and requires a transformer but as long as you apply some common-sense safety rules when wiring up the mains connection
2005-02-19 by stk
Hi all, Can anyone recommend a good +-15v psu similar to the motm / blacet units available in Australia at a decent price? I'd like to exhaust local options before ordering one from the US, and don't feel confident building my own. cheers, Skye. -- No virus found in this outgoing
2005-02-19 by t0ny_mowbray
--- In cgs_synth@yahoogroups.com , "t0ny_mowbray" wrote: > > Hi, > > I used to have a Korg PolySix and a mono (can't remember the model) > with 1/4" jacks over it. Unfortunately I sold them both and now I am > kicking myself! > > I want to build a systh from scratch and I really
2005-02-19 by Ryan Williams
there is quite a bit to consider when starting a synth project. do you want stand alone or pre-patched? Ken's CGS modules are great and there are some really neat and unique designs. you will most likely want to build some other more generic modules at some point. I suggest doing
2005-02-19 by Laurie Biddulph
--- In cgs_synth@yahoogroups.com , "t0ny_mowbray" wrote: > > Hi, > > I used to have a Korg PolySix and a mono (can't remember the model) > with 1/4" jacks over it. Unfortunately I sold them both and now I am > kicking myself! > > I want to build a systh from scratch and I really
2005-02-19 by hitchindave
Hi. Aim for a simple monophonic synth to start with. A simple basic system would be a VCO, mixer, VCF, VCA, LFO, and an envelope generator (or ADSR). I'd recommend starting by building an EQ or VC filter - once it's finished, you can test it easily, and start using it straight aw
2005-02-19 by bbluthang
hello if you are fine with components and soldering, CGS is a good place to begin. best to start considering a regulated +/-15V power supply and what will you use to house your synth. cabinet, old toolbox, fracrak? make your own panels or follow a format? schaeffer, stooge, scree
2005-02-18 by Richard Brewster
I have two of these. They are based on a design originally from Electronotes and it resembles the ASM-1 VCO. If you use the MAT-02/ LM394 matched transistor pair and the TEMPCO resistor, you will get good stability and tracking. It is a real music VCO. One of the nice things abou
2005-02-18 by t0ny_mowbray
Hi, I used to have a Korg PolySix and a mono (can't remember the model) with 1/4" jacks over it. Unfortunately I sold them both and now I am kicking myself! I want to build a systh from scratch and I really need some help to point me in the right direction. I am an Electrician an
2005-02-18 by dustin sedlacek
i am looking into building the ken stone VCO. and i have a few questions for the others that have built one (or several!) how stable are they? how flexable are they? what about the quality? ( this will be my first analog VCO ) and what about the avalibility of the parts ? -- Dust
2005-02-18 by sasami@hotkey.net.au
>Easy one I hope. If using 47k LIN pots for the 6 speed controls, >would changing the caps around the speed pot to 4.7uF/47uF, >and the series resistor to 220 or 240 ohms work OK? Keeping the ratio whould keep the time constants the same - however as the caps get larger, the char
2005-02-18 by stk
Thanks Laurie, had forgotten about Farnell. cheers, skye. Laurie Biddulph wrote: > Farnell (www.farnellinone.com.au) have 3 versions of this with the cheapest being the CD40106BE (573-620) @ AUS$0.956 plus GST > Best Regards > (Mr) Laurie Biddulph > -- No virus found in this outg
2005-02-17 by Phil
Thanks Larry, Sounded good in theory.That was the essence of my original question.You have been very helpful. Phil
2005-02-17 by Larry Hendry
--- Phil pditullio@... > wrote: > As I get close to 180 degrees won't an identical or signal with > similar freq., get a kind of filtering(subtracting) of freq?If so I > am wondering if this might be a pleasing or useful effect. Not really. The other signal would have to be exact
2005-02-17 by hitchindave
Hi all. Easy one I hope. If using 47k LIN pots for the 6 speed controls, would changing the caps around the speed pot to 4.7uF/47uF, and the series resistor to 220 or 240 ohms work OK? Also, has anyone found any magic combinations of speed settings for the 6 lfos, or ratios betwe
2005-02-17 by Phil
John, Thank you that really helped me with getting a handle on the theory of this mixer.Your examples were very clear. Phil
2005-02-17 by Phil
Larry, > Phil, if you send identical signals to both an inverted and non > inverted input, the effect should be near cancellation. But, what > does that buy you? The signlas need to be exactly 180 degrees out of > phase, so you cannot really use a cancellatiion effect except with
2005-02-16 by Larry Hendry
--- Phil pditullio@... > wrote: > With the megaMixer using noninverted and inverted ins can I > actually get an adding and subracting of frequencies? Similar > effect as the cancellation frequencies by sending the same signal > to inverted and noninverted? Phil, if you send ident
2005-02-16 by john mahoney
Phil, The megaMixer can process 2 types of signals: 1, audio; 2, control votages (CVs). There is a *big* difference between them. So, which are you asking about? When using the megaMixer to process of audio signals, the answer is "No, you can't really do what you want." (Unless y
2005-02-16 by Phil
Yes I am understanding, any mixer will just control amplitude of whatever signal or CV sent to it. With the megaMixer using noninverted and inverted ins can I actually get an adding and subracting of frequencies? Similar effect as the cancellation frequencies by sending the same
2005-02-16 by Larry Hendry
Phil, Certainly, any attenuator used with CV will result in a different change rate in frequency of an oscillator that is controlled by thet CV (inside or outside of a mixer). For example, if you have a CV signal that you are using to control an oscillator and you want that CV si
2005-02-16 by Phil
Okay I understand amplitude is affected but in a 1 volt/oct synth by varying the ressistors will I affect frequency? I appreciate your help I am just trying to get a handle of the concept. Thanks, Phil
2005-02-16 by Laurie Biddulph
Farnell (www.farnellinone.com.au) have 3 versions of this with the cheapest being the CD40106BE (573-620) @ AUS$0.956 plus GST Best Regards (Mr) Laurie Biddulph -------------------------------------------------------------------------------- Elby Designs 9 Follan Close Kariong NS
2005-02-16 by sasami@hotkey.net.au
Altronics Z 8450 Jaycar ZC-4914 http://www.rockby.com.au/searchres.cfm?searchkey=40106&x=10&y=6 http://www.rockby.com.au/searchres.cfm?searchkey=74C14&x=7&y=8 Also known as 74C14. Similar device - 4584. 7404 and 4050 CAN NOT be substituted. Ken > > >Firstly, I'm new to this group
2005-02-16 by skye
Firstly, I'm new to this group, so hello all. I'm buying components for the Psycho lfo, can't find the 40106 cmos, but read at ( http://www.hippy.freeserve.co.uk/chipxref.htm#BUFFER) that the 7404 or 4050 could be substituted. Can anybody offer me any advice, or better still know
2005-02-15 by jeff brown
In the audio world, a "mixer" is a voltage adder. It has no real affect other than to combine two or more signals into one signal path. In the world of radio, a "mixer" is a voltage multiplier, which has the effect you describe. In a synthesizer, we have the 4 quadrant multiplier
2005-02-15 by Richard Brewster
Mixers are concerned with amplitudes (voltage) only, not frequencies. Whatever frequencies go into the mixer will come out. You may be thinking of the treble, mid, and bass controls on some commercial mixers. These are actually filters added to mixer. The CGS megamixer does not h
2005-02-15 by Phil
I am still getting my flippers wet with the diy thing.I have a question. If I calculate frequencies and vary the resistors of the inputs will I be able to mix (add and subtract)different frequencies of the inputs?I don't know what kind of effect this will have but I figure it cou
2005-02-10 by sasami@hotkey.net.au
Damaged transistor? Wrong type of transistor? E and C swapped? Ken > > > I have a problem with the gated comparator module. The fifth stage >out and led don't work. I tried trouble shooting a couple months ago >with no luck (everything else works fine, so it still gets a lot of >
2005-02-10 by peng3002
I have a problem with the gated comparator module. The fifth stage out and led don't work. I tried trouble shooting a couple months ago with no luck (everything else works fine, so it still gets a lot of use). Here is a new clue I discovered: patched into 5th output left one end
2005-02-03 by Andy Wilson
Hi Brett, On 2 Feb 2005 at 22:56, bambam4236 wrote: > Anyway just wanted to ask has anyone added a pot for cv modulation > amount of the cutoff? as it is its either on or off so i'd love to > have a pot to control how much it effects the cutoff. I've put > seperate pots for level
2005-02-03 by bambam4236
Hi all Newbie to the group and just finished my first stone project the steiner filter which i'm really loving the sound of. Have to say Ken rocks and with a little help from him (lucky to be local) I have finally completed my first module....more to come i'm sure ;) Anyway just
2005-02-02 by Phil
Thanks for some direction.I am still quite green and looking for some place to gather info to put it all together. This query started with a great mod I found by adding 2 dual linear VCA boards to Ken's Steiner VCF. http://www2.charlielamm.com/synth/steiner/index.php Which got me
2005-02-01 by charlesosthelder
Hey Phil! An OTA used as an input buffer with a linear current control source would be an easy way to control the audio inputs to the poles. A very fun tutorial for experimenting with OTA's in synth circuits can be had from Thomas Henry. Check out http://www.midwest-analog.com/ f