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Re: Burst Generator; Internal Clock Problem....

2009-04-05 by sasami@hotkey.net.au

The first thing I would so is remove the diode connected to pin 5 of the 40106. That will let the oscillator free run. If you are trying to do any tests with the generator in its "hold" state, the oscillator will not run. Ken >Lance, I don't think that is correct. The middle lug

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Re: Burst Generator; Internal Clock Problem....

2009-04-05 by lance iden

Jim. If you look at the diagram the 22k side is tied to the left terminal AND the pot wiper. the right terminal is then tied to the 47k and diode. Lance On Sun, Apr 5, 2009 at 11:42 AM, James Elliott johans121@... > wrote: > Lance, I don't think that is correct. The middle lug is

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Re: Burst Generator; Internal Clock Problem....

2009-04-05 by James Elliott

Lance, I don't think that is correct. The middle lug is is not soldered to ground, it is soldered to the one of the two pot pads (middle to the 47k, center to the diode & 22k), if I were to bridge the other lug to center, then I would have a constant resistance of 2Meg between th

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Re: Burst Generator; Internal Clock Problem....

2009-04-05 by lance iden

James. I think that on your speed pot your open terminal needs to be tied to the center terminal. Just a thought.Lance On Sat, Apr 4, 2009 at 8:47 PM, James Elliott johans121@... > wrote: > Hello, > > Newbie here.... > > I just got through building the Burst Generator and everyth

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CGS58 gain question

2009-04-05 by Dave Kendall

Hi all. I changed the 150K resistors in the schmitt trigger sections for 127K-ish (6K8 + 120K in series), to get the output from the saw/tri up to ±5V. It was originally around ±4V. This works, but there is a very slight negative offset - the wave dips a wee bit below -5V and doe

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Burst Generator; Internal Clock Problem....

2009-04-05 by James Elliott

Hello, Newbie here.... I just got through building the Burst Generator and everything seems to be working fine except for the internal clock. It doesn't seem to be oscillating. I've spent the last 3 hours looking it over & honestly I'm too much of a newbie to even know how to pro

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Re: CD/HC STMicro

2009-04-03 by Dave Kendall

Some +15V CMOS ICs are labelled HCF 40xx. ST micro seem to do this a lot - I have HCF4052, 4013, 4001 etc. - all +15V parts. The F is the important bit to watch for. Most +5V parts I have come across have a "74" prefix eg. 74HC123. 74HCT is another class of +5V parts - CMOS, but

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CD/HC STMicro

2009-04-03 by w1xyzq

I'm just getting back to building my synth. I was looking through my parts to see what I need to order, and most of my logic chips are labeled HC4015, etc. I was kicking myslef, because I want the CD part. BUT.. then I was looking at my modules, and most are built w/ the HC part.

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Re: CGS Alphabet Soup.

2009-03-31 by Jason Proctor

i'll settle for a free CGS PCB of my choice :-) >Someone just won an air guitar. > >>"Twin" Wasp Filter? >>(If that's right, Jason P should really win the free inflatable >>solar-powered portable modular-compatible USB Air Guitar,... or >>whatever:-) >> >>The suspense is unbearab

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Re: CGS Alphabet Soup.

2009-03-31 by sasami@hotkey.net.au

Someone just won an air guitar. >"Twin" Wasp Filter? >(If that's right, Jason P should really win the free inflatable >solar-powered portable modular-compatible USB Air Guitar,... or >whatever :-) > >The suspense is unbearable........ > >cheers, >Dave > > >On Mar 30, 2009, at 23:

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Re: CGS Alphabet Soup.

2009-03-30 by Dave Kendall

"Twin" Wasp Filter? (If that's right, Jason P should really win the free inflatable solar-powered portable modular-compatible USB Air Guitar,... or whatever :-) The suspense is unbearable........ cheers, Dave On Mar 30, 2009, at 23:32, Jason Proctor wrote: > >Close. > > well, cyn

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Re: CGS Alphabet Soup.

2009-03-30 by david wright

i would pick up a totally wicked filter pcb anyday On Mar 30, 2009, at 3:23 PM, sasami@... wrote: > >trapezoid wasp filter? > > Close. > > > > >if so, I'll have one;-) > > > > > >On Mar 30, 2009 14:09 sasami@... wrote: > >> No prizes yet! > >> >Triple wave folder? > >> > > >> >Do

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Re: CGS Alphabet Soup.

2009-03-30 by sasami@hotkey.net.au

>trapezoid wasp filter? Close. > >if so, I'll have one;-) > > >On Mar 30, 2009 14:09 sasami@... wrote: >> No prizes yet! >> >Triple wave folder? >> > >> >Do I win a prize uncle Ken? >> > >> >:-) >> > >> >cheers, >> >Dave >> > >> > >> > >> > >> >On Mar 30, 2009, at 10:58, sasami@.

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Re: CGS Alphabet Soup.

2009-03-30 by Dave Kendall

Triggered wave filter/folder? Transistorized Wombat Feeder? On Mar 30, 2009, at 14:33, w1xyzq wrote: > Tiny wave folder, using all surface mount components for our soldering > pleasure. > > Or tiny wormhole factory? > > --- In cgs_synth@yahoogroups.com , "Tom Adam" wrote: > > > >

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Re: CGS Alphabet Soup.

2009-03-30 by w1xyzq

Tiny wave folder, using all surface mount components for our soldering pleasure. Or tiny wormhole factory? --- In cgs_synth@yahoogroups.com , "Tom Adam" wrote: > > trapezoid wasp filter? > > if so, I'll have one;-) > > > On Mar 30, 2009 14:09 sasami@... wrote: > > No prizes yet!

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Re: CGS Alphabet Soup.

2009-03-30 by Tom Adam

trapezoid wasp filter? if so, I'll have one;-) On Mar 30, 2009 14:09 sasami@... wrote: > No prizes yet! > >Triple wave folder? > > > >Do I win a prize uncle Ken? > > > >:-) > > > >cheers, > >Dave > > > > > > > > > >On Mar 30, 2009, at 10:58, sasami@... > > wrote: > > > >> CGS49 T

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Re: CGS Alphabet Soup.

2009-03-30 by sasami@hotkey.net.au

No prizes yet! >Triple wave folder? > >Do I win a prize uncle Ken? > >:-) > >cheers, >Dave > > > > >On Mar 30, 2009, at 10:58, sasami@... wrote: > >> CGS49 TWF >> >> That ought to keep you guessing!!! >> __________________________________________________________ >> Ken Stone sasa

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Re: CGS Alphabet Soup.

2009-03-30 by Jon

I think that's a very good guess! I'll hope for a Transient WaveFormer :) Cheers, //Jon --- In cgs_synth@yahoogroups.com , Mike Burnham wrote: > > > tube wave folder??? > > To: cgs_synth@yahoogroups.com > From: sasami@... > Date: Mon, 30 Mar 2009 19:58:47 +1000 > Subject: Re: [cg

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Re: CGS Alphabet Soup.

2009-03-30 by Mike Burnham

tube wave folder??? To: cgs_synth@yahoogroups.com From: sasami@... Date: Mon, 30 Mar 2009 19:58:47 +1000 Subject: Re: [cgs_synth] CGS Alphabet Soup. CGS49 TWF That ought to keep you guessing!!! __________________________________________________________ Ken Stone sasami@... otheru

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Re: CGS Alphabet Soup.

2009-03-30 by Dave Kendall

Triple wave folder? Do I win a prize uncle Ken? :-) cheers, Dave On Mar 30, 2009, at 10:58, sasami@... wrote: > CGS49 TWF > > That ought to keep you guessing!!! > __________________________________________________________ > Ken Stone sasami@... otherunicorn@... > Modular Synth PC

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Re: CGS Alphabet Soup.

2009-03-30 by sasami@hotkey.net.au

CGS49 TWF That ought to keep you guessing!!! _______________________________________________________________________ Ken Stone sasami@... otherunicorn@... Modular Synth PCBs for sale http://www.cgs.synth.net/ > Australian Miniature Horses & Ponies http://www.blaze.net.au/~sasami/

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CGS Alphabet Soup.

2009-03-30 by Jon

Hey! Slightly bored at work I came up with the idea of giving all the CGS modules 3 letters combination - as the old Serge systems used to have! Anyway - take it for what it is - a fun idea! :) CGS01 - SBO CGS02 - WTB CGS03 - PLF CGS04 - MXR CGS06 - BGR CGS07 - GSQ CGS08 - V8S CG

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Re: Inf Mel output pots

2009-03-29 by Richard Brewster

I frequently patch the three D/A outputs of the Infinite Melody directly to 1V/octave inputs of VCOs. The voltage range of these outputs depends on the bit disable switches for bits 4 and 5. And if you need to attenuate the CV, every VCO has attenuated FM inputs. There is a commo

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Inf Mel output pots

2009-03-29 by w1xyzq

Most of the photos of infinite melodies show them built w/out output pots. Would you suggest using them or not? My VCO's do not have attenuated inputs (for 1v/o). The rest of my modules w/ CV in are a mix of having pots on the inputs. I do have a bank of 4 attenuators for patchin

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Re: problem with diatonic converter

2009-03-29 by joshdaigleusa

It's a CV Quantizer, not a sequencer (though a sequencer is obviously a very good thing to run through the Quantizer): http://www.musicfromouterspace.com/analogsynth/VOLTAGEQUANTIZER/VOLTAGEQUANTIZER.php --- In cgs_synth@yahoogroups.com , "w1xyzq" wrote: > > Sorry for the off top

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Re: problem with diatonic converter

2009-03-29 by w1xyzq

Sorry, I had misread your post earlier. I was reading a different thread about interfacing the converter to the digital chip on the MFOS seq. I read your post too quickly and thought you were talking about the same thing. --- In cgs_synth@yahoogroups.com , "w1xyzq" wrote: > > Sor

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Re: problem with diatonic converter

2009-03-28 by joshdaigleusa

Thanks for the suggestions. I emailed with Ken and we tracked the problem down. There were 2 issues. First I was wiring the Maj/Min input directly into the Maj/Min pad when it needed to go through one of the input op-amps (this was shown in the example of integrating the Diatonic

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Re: problem with diatonic converter

2009-03-28 by w1xyzq

Sorry for the off topic question, but how do you drive the converter from the sequencer? It doesn't have analog inputs to get the regular sequencer CV. thanks! --- In cgs_synth@yahoogroups.com , Paul Newman wrote: I'm driving this Diatonic Converter from a Ray Wilson MFOS Quantiz

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Re: problem with diatonic converter

2009-03-28 by Mark

On 3/28/09, joshdaigleusa put forth: >Stranger still, there seems to be some sort of active "field" around >the lower 1/2 of the CD4053B there where the Maj/Min mode is supposed >to be controlled (this isn't happening with any of the other chips and >even not on the top 1/2 of th

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problem with diatonic converter

2009-03-28 by Paul Newman

I have built the Diatonic Converter but am having trouble with the Maj/Min input. I wired up an SPST toggle switch for Maj/Min, with +15VDC wired through a 100K resistor for Min mode, unconnected (default) for Maj mode - that should be right, yes? I'm unable to get it to switch t

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problem with diatonic converter

2009-03-28 by joshdaigleusa

I have built the Diatonic Converter but am having trouble with the Maj/Min input. I wired up an SPST toggle switch for Maj/Min, with +15VDC wired through a 100K resistor for Min mode, unconnected (default) for Maj mode - that should be right, yes? I'm unable to get it to switch t

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Modulo Magic

2009-03-26 by w1xyzq

To anyone who has built the modulo magic, do you use it more often as a cv generator, or as an audio processor(wave mult)? I have the sub osc, and I use it far more often as a strange semi-random sequencer, than as a sub osc. (It is amazing for that!) Maybe I've answered my own q

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Re: [SPAM] [cgs_synth] cgs tube VCA

2009-03-11 by Mark

On 3/11/09, analogback put forth: >Thats great, >thanks for the answers guys.. i'll test it out first and let you >know the results, hopefully it works! I am planning to drive a >spring reverb with one of the VCAs so it may or may not need the >extra gain. >regards, gab Sure, inc

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Re: [SPAM] [cgs_synth] cgs tube VCA

2009-03-11 by analogback

--- In cgs_synth@yahoogroups.com , sasami@... wrote: > > You won't damage it. You'd probably lose a little gain, and maybe get some > more distortion. > > Ken > > >hello, > >i intend to start building a couple of the tube VCAs and i am hoping to add > them to a 12volt system. wil

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Re: [SPAM] [cgs_synth] cgs tube VCA

2009-03-10 by sasami@hotkey.net.au

You won't damage it. You'd probably lose a little gain, and maybe get some more distortion. Ken >hello, >i intend to start building a couple of the tube VCAs and i am hoping to add them to a 12volt system. will this work? should i just test them with 12v and hope for the best or

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Re: cgs tube VCA

2009-03-10 by Mark

On 3/9/09, analogback put forth: >hello, >i intend to start building a couple of the tube VCAs and i am hoping >to add them to a 12volt system. will this work? should i just test >them with 12v and hope for the best or could this potentially damage >the VCA? is a 15volt supply ab

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cgs tube VCA

2009-03-09 by analogback

hello, i intend to start building a couple of the tube VCAs and i am hoping to add them to a 12volt system. will this work? should i just test them with 12v and hope for the best or could this potentially damage the VCA? is a 15volt supply absolutely nessecary for these VCAs? any

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Re: Serge like modules

2009-03-03 by Mark

Does anyone have a schematic of this lm3900-based EG?? http://www.cgs.synth.net/synth/serge/envelope_generator.html I've been looking at different EG circuits lately, and I would like to see how this one works for educational purposes. On 3/3/09, Ove Ridé put forth: >Semi-related

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Re: Serge like modules

2009-03-03 by intellijel

> The old Serge circuits are interesting for historical reasons, but > hardly worth cloning in my opinion. They are quite simple. I had > access to some Serge's and assembled several for other people back i ok great this is good info to know. I will definitely start with the CGS

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Re: Serge like modules

2009-03-03 by Ove Ridé

2009/3/3 intellijel danjel@... >: > >> Semi-related... There's a topic on Muffwiggler about cloning Serge >> modules, which actually links to the most well hidden part of Ken's >> site. ;) > hehe yup, started by me! Oh, excuse my blindness! /Ove -----BEGIN 2ROT13 MESSAGE----- Low

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Re: Serge like modules

2009-03-03 by intellijel

> Semi-related... There's a topic on Muffwiggler about cloning Serge > modules, which actually links to the most well hidden part of Ken's > site. ;) hehe yup, started by me!

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Re: Serge like modules

2009-03-03 by Richard Brewster

The old Serge circuits are interesting for historical reasons, but hardly worth cloning in my opinion. They are quite simple. I had access to some Serge's and assembled several for other people back in the seventies. My favorite Serge modules were the "Smooth and Stepped Generato

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Re: Serge like modules

2009-03-03 by Ove Ridé

Semi-related... There's a topic on Muffwiggler about cloning Serge modules, which actually links to the most well hidden part of Ken's site. ;) http://www.muffwiggler.com/forum/viewtopic.php?t=3485 2009/3/1 intellijel danjel@... >: > Several of the CGS modules make reference to i

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Re: Serge like modules

2009-03-03 by John Loffink

I have the CGS Wave Multiplier and ASR and highly recommend them. John Loffink The Microtonal Synthesis Web Site http://www.microtonal-synthesis.com The Wavemakers Synthesizer Web Site http://www.wavemakers-synth.com intellijel wrote: > Several of the CGS modules make reference t

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Gated Comparator Schematics?

2009-03-02 by Jon

Hi, I've been looking at the Gated Comparator for a while now - and there's a slight difference between the version 1 and 2 available on the CGS site - On the old version ( http://www.cgs.synth.net/modules/pic/schem_cgs13_gated_comparator.gif) , there was an output buffer connect

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Serge like modules

2009-03-01 by intellijel

Several of the CGS modules make reference to influence from Ken's old Serge system. cgs26 Analog Logic cgs29 Wave Multiplier cgs34 ASR cgs48 VCO cgs52 Simple Wave Folder cgs59B/4xA programmer/seq I am really interested in trying to clone Serge functionality and I was wondering if

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Re: banana cvs pot/switch part number?

2009-03-01 by Jon

http://electro-music.com/forum/topic-26503.html Should answer the pots question. //Jon On 2/24/09, Jason Proctor jason@... > wrote: > > 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 PC

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Re: banana cvs pot/switch part number?

2009-02-24 by sasami@hotkey.net.au

Mouser p/n: 313-1600-50k _______________________________________________________________________ Ken Stone sasami@... otherunicorn@... Modular Synth PCBs for sale http://www.cgs.synth.net/ > Australian Miniature Horses & Ponies http://www.blaze.net.au/~sasami/ >

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Re: banana cvs pot/switch part number?

2009-02-24 by Richard Brewster

There should be room on a MOTM size panel for the switch, no? Richard Jason Proctor wrote: > 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 b

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