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2005-03-25 by charlesosthelder
> work, but this one has an NTE part number NTE4006B so it should work? Maybe? > Fingers crossed? > > Thanks-- > --Adam NO!!! The NTE parts NEVER worked! Read my last post - I've got a trace on a small cache of 4006's. I could have 50 next week! No minimum order - heck, no order!
2005-03-24 by Adam Schabtach
Wow, thanks, everyone, for the quick responses. > The NTE equivelent 4006 IC's that I bought from Mouser were no good > in the noise circuit (check archives), but neither were a small bunch > of TI and Fairchild. Series made no difference. Jameco has an NTE4006B for the rather ri
2005-03-24 by charlesosthelder
Okay - Hosfelt is temporarily out and many other places are selling the IC for over $1.50, BUT - I've just been offered 50! Wheee!!! Seriously, the Digital Noise is one of my favorite modules, and I'll not let this fade into obscurity! I'll know by Monday if my little stock sweep
2005-03-24 by charlesosthelder
Try this - http://www.web-tronics.com/cd4006.html $1.50 (US) and they've got 381 in stock. Many of the other 4000 CMOS IC's are available (4017, 4024, 4030) and I've got a pretty tidy pile - EXCEPT for the 4006 and 4024! Let me know what you need and I'll look for it. No charge.
2005-03-24 by Scott Stites
(I'm assuming you're in the US). The 4006 is available at a lot of the surplus electronics pages. One that comes to mind is Hosfelt Electronics: www.hosfelt.com Good people, and the 4006 is much less than $0.30 each. Cheers, Scott -----Original Message----- From: Adam Schabtach a
2005-03-24 by Adam Schabtach
Okay, this is slightly frustrating. After planning a module based on the CGS Digital Noise source and a homebrew sample & hold, ordering the PCB from Ken, ordering a custom panel from Front Panel Express, I discover that the 4006 shift register has been discontinued. None of my u
2005-03-24 by m0n075
Hi Anyone used the design of jamoss? The look interesting to me i got a SKB with Moog modules. And i got 1 HE of space unde rit so a rackmount like that looks nice. If anyone got one of his rackmounts design could you please upload a picture? Regards, Dennis
2005-03-24 by charlesosthelder
Hi all! I've got two VCO pcb's on order and am getting the parts together (yes, I'll get a US parts list together!)for an all-the-options setup. Can anyone tell me what the typical low frequency limit is without mods? Also, do you have any useful build info that hasn't been prese
2005-03-23 by Larry Hendry
Sorry, I did not realize attachments were not allowed. See here: http://larry.retrosynth.com/larry/misc/WM-front.jpg --- Larry Hendry hendrysr@... > wrote: > > See attached panel. However, I believe the PCB has changed since I > did these. > __________________________________ Do
2005-03-23 by Larry Hendry
See attached panel. However, I believe the PCB has changed since I did these. I use my own Stooge brackets for mounting PCBs. brackets are help to the panel by the pots. PCBs screw to the brackets using machine screws, nuts and stand off spacers Larry --- bambam4236 hotbambam@...
2005-03-23 by brett x
HI ken I thought as much and dug a bit more and found exactly that ;) i think the easiest solution is to buy one of those motm distribution boards and wire it to the big PS i got from dot com, that way your modules should fit well into the system ;) Cya Brett >From: sasami@... >R
2005-03-23 by Adam Schabtach
> Also i was wondering do you just use metal posts and screw through > the front of the panel to mount your cgs boards I've started using glue. Obviously you can't use just any glue; I use slow-cure epoxy made specifically for gluing metals. The stuff is really strong once it dri
2005-03-23 by sasami@hotkey.net.au
>The only other thing i wanted to ask about is power connections, as >part of my .com i have a nice big PS here now and am thinking one of >these http://www.synthtech.com/motma.html from MOTM is the best >answer....as far as i can tell CGS all have the same connectors as >MOTM? M
2005-03-23 by Colin Hinz
On Sun, 20 Mar 2005 "peng3002" peng3002@... > wrote: > I got the main sequencer board soldered up. Powered it up and weird > things started happening. Output 3 permanantly on, output 4 never > turns on, and output seven is skipped (by skipped I mean it jumps > from out 6 to out 8
2005-03-22 by bambam4236
HI All I finally have started building a dot com modular and have just received my first parts. i had a few questions for some of you that may have put CGS modules into this format. I have ordered 2 blank double width panels from .com and plan on using them to begin with for a st
2005-03-22 by R. Drake
fantastic... i had the same "skipping step 7" issue with my gate sequencer a while back and had actually given up... swapping in a TL072 did the trick. another project rescued from the "shelf of failure". thanks! bbob on 3/20/05 9:26 AM, cgs_synth@yahoogroups.com at cgs_synth@yah
2005-03-20 by sasami@hotkey.net.au
Easy explanation - Some LM358 have lousy slew rates. The resultant clock to the 4017 is too slow, resulting in odd behavior. I've found perhaps two such LM358 in my time, though obviously it appears to be a problem that will keep raising its head. Thanks for doing the research. I
2005-03-20 by peng3002
I got the main sequencer board soldered up. Powered it up and weird things started happening. Output 3 permanantly on, output 4 never turns on, and output seven is skipped (by skipped I mean it jumps from out 6 to out 8 with not even a pause on 7). Thought what the...? After much
2005-03-19 by sasami@hotkey.net.au
>I'm sure this is a silly question but as a neophyte I would >appreciate some advice... I'm planning on building a stand-alone >filter box using the stomp box adapter and 1 or 2 steiner VCFs >along with the dual LFO or a couple of psycho LFOs to modulate >the frequency cutoffs an
2005-03-19 by eblake_smith
Hello all, I'm sure this is a silly question but as a neophyte I would appreciate some advice... I'm planning on building a stand-alone filter box using the stomp box adapter and 1 or 2 steiner VCFs along with the dual LFO or a couple of psycho LFOs to modulate the frequency cuto
2005-03-18 by peng3002
Thanks for the help. --- In cgs_synth@yahoogroups.com , sasami@h... wrote: > I don't forsee any problems. The fact is the schematic is made from the PCB, > so the PCB will be the correct one. And to be more specific, the diode is > connected to correct place on the PCB, thanks fo
2005-03-18 by sasami@hotkey.net.au
I don't forsee any problems. The fact is the schematic is made from the PCB, so the PCB will be the correct one. And to be more specific, the diode is connected to correct place on the PCB, thanks for pointing it out. As for the output, either arrangement would work. The one wher
2005-03-18 by peng3002
There's two more differences between this pcb and schematic. I'm not sure if the differences will matter, so I'll ask. In the reset area of schematic shows: 15V to 110n cap, other side of cap to 100K-gnd and the anode of diode. Cathode is connected to junction of pin3 of opamp, 1
2005-03-18 by sasami@hotkey.net.au
Hmm.... interesting..... Just built it as is. 1.4 is the latest revision. I don't remember why that diode was added. It prevents the reset pulse from being greater than the supply voltage. It may have been added for a case when the engine was being run off a lower voltage than th
2005-03-18 by peng3002
This question is regarding the components around the reset input on the 'M' board. I have REV1.4 pcb. Some component connections are different than the schematic. For instance: At the junction of the reset input-100K to gnd-10n cap there is a diode (anode) connected with cathode
2005-03-16 by Andy Wilson
For anyone interested, I cobbled together a quick webpage for the Wavemultiplier. No sound samples yet, and it's still on veroboard! Also includes a Schaeffer file for an Oakley compatible front panel. http://www.techman.synth.net/techman_website2_000042.htm Cheers Andy --- Andy
2005-03-15 by sasami@hotkey.net.au
> >ok now this makes sense, i wasnt sure if i was over looking something >on the schem or not im new the diy scene and i appreciate all of the >help from everone , i had another question also ...... 2N4856 where >can i find this ? There are quite a number of FETs that will work h
2005-03-15 by mbedtom@aol.com
Dustin, 2N4856A is in stock at Newark Electronics as stock number 13C1994 at $2.06 each. www.Newark.com will get you there. Punch in either 13C1994 or 2N4856 into the "Search For" text box. A kissin' cousin is the PN4391 (Fairchild) available from Mouser for $0.22 each: www.Mouse
2005-03-15 by dustin sedlacek
ok now this makes sense, i wasnt sure if i was over looking something on the schem or not im new the diy scene and i appreciate all of the help from everone , i had another question also ...... 2N4856 where can i find this ?
2005-03-15 by Scott Stites
Hmmm...cake-and-eat-it mode - If you're a 1/4" or 1/8" kinda guy, you could normal the jack to the VCO output, allowing the VCO to drive the stepped output. Then, by plugging an external signal into the jack, you could then drive the stepped output externally. Cheerio, Scott ----
2005-03-15 by sasami@hotkey.net.au
>pardon my ignorance , what would be use be of connecting it to a jack >? would it follow a input signal ? It would. The signal could for example be from a digital noise generator or an LFO. Ken _______________________________________________________________________ Ken Stone sas
2005-03-14 by dustin sedlacek
pardon my ignorance , what would be use be of connecting it to a jack ? would it follow a input signal ? On Tue, 15 Mar 2005 06:58:25 +1100, sasami@... sasami@... > wrote: > > > >ok several questions about the VCO , first we are building a vco > >are ceramic resistors ok (instead
2005-03-14 by sasami@hotkey.net.au
>ok several questions about the VCO , first we are building a vco >are ceramic resistors ok (instead of the metal film ) ? Metal film are needed in the core and CV sections for both accuracy, AND stability. If you are just building a "noise box", ceramic resistors are okay. >and
2005-03-13 by Andy Wilson
Hi Chris, It's IC4 which I've replaced with the TL074. I haven't yet implemented the hard/soft mod, that's something to do this week sometime, then I'll get some samples up on my website. I'll let you know when it's up. Cheers Andy On 11 Mar 2005 at 21:35, z_flash_ram wrote: > >
2005-03-13 by dustin sedlacek
ok several questions about the VCO , first we are building a vco are ceramic resistors ok (instead of the metal film ) ? and now what about the staircase and sub osc ? does the stair case have a input as listed on the schem ? "staircase in STI" what is this ? i do not know.
2005-03-11 by z_flash_ram
Hi, Andy, which LM324 are you replacing with a TL074? I'm also curious about your 'hard/soft' mod and its installation, too. I'll be building my 1st CGS wavemultiplier in a couple weeks. Regards, Chris > Thanks for the tip. I must say, I'm not particularly worried about >using th
2005-03-11 by waveform100
check it out on good monitors Andy, I heard mine yesterday the first time and I am completely happy with it. Its a lot better than I thought. Very rich and fertile. What I didn't expect was, that the sqr-inputs also gives nice results with a Triangle on the input. Olivier Gerber
2005-03-10 by Andy Wilson
Hi Cynthia, On 10 Mar 2005 at 8:18, Cynthia Webster wrote: > > You might have success with this part TLE2144CN I've been > experimenting with > them lately. It's a high-speed DIP Opamp that is TL074 pin-for-pin > compatible from Texas Instruments. > > (They're about five times th
2005-03-10 by Cynthia Webster
> > Message: 1 > Date: Thu, 10 Mar 2005 08:49:19 +1100 > From: sasami@... > Subject: Re: Wave Multiplier > > Hi, > > Serge used 4558 from memory, and yes, the waveforms are all "soft". Earler > experiments I did were harder edged. There are other quad op-amps that are > even fast
2005-03-09 by sasami@hotkey.net.au
Hi, Serge used 4558 from memory, and yes, the waveforms are all "soft". Earler experiments I did were harder edged. There are other quad op-amps that are even faster than the TL074, though I forget the number off hand. Ken >Hi Ken, > >Just a quick question regarding the Wavemulti
2005-03-09 by Andy Wilson
Hi Ken, Just a quick question regarding the Wavemultiplier. I was breadboarding it up last night, and I found that the pulse out quickly turns to a triangle wave as the frequency is increased. The 'scope reveals that this is due to slew rate limiting of the LM324 as it tries to c
2005-03-09 by cgs@oldmail.charlielamm.com
The steiner VCF is about the same size i think, so I had the same issue as you. I fracracked it by putting down a piece of perf and then mounting it (and some VCA's) onto the perf... Then mounting the perf to the fracrack 3u panel. I got more purchase on the front of the fracrack
2005-03-08 by dustin sedlacek
does anyone have a kenstone VCO in a frac rack format ? i was thinking that i could do this but the VCO board is 6" long , could they be mounted with the 2" side going horizontal ? anyone have any pics? or ideas ?
2005-03-08 by sasami@hotkey.net.au
Simply put, you are exchanging reliability for ease of service. If your chip is very expensive, or likely to fail, or you wish to experiment with other types in the same circuit board, use a socket. If there is no reason to use a socket, it is better not to, as you remove a bundl
2005-03-08 by z_flash_ram
I've been reading thru some 'highlight' posts I've gathered from this list and I see some refrences to not using IC sockets for certain situations (like the ASR), although it's only mentioned in passing. Does anyone care to breifly explain the particular side effects of using soc
2005-03-07 by bambam4236
Thanks alot Ken Always quick with the answers ;) The module is now working really well from both outputs and i love the results.....i might build another with one of the transistors still in the wrong way as i quite liked the nasal type output i was getting until i fixed it yeste
2005-03-07 by sasami@hotkey.net.au
A couple of answers - >I had a few questions, with the two 10n decoupling capacitors do i >just solder them onto the two sets of pads on the back adjacent to >the power connections? and also can someone explain exactly what >they do...well i know its for ps decoupling but what ex
2005-03-07 by bambam4236
Hi All Finished building a simple wavefolder and its amazing for something so simple and cheap to build ;) well the one output i have working is great! I had a few questions, with the two 10n decoupling capacitors do i just solder them onto the two sets of pads on the back adjace
2005-03-06 by bbluthang
--- In cgs_synth@yahoogroups.com , "boward_k" wrote: > > Hi..-trying to find parts here in sweden..Anyone who knows any good > site's or stores(Stockholm). > > Bovar.kalim@l... maybe these guys can help - http://www.mkv.mh.se/staff/per/sas/index.shtml
2005-03-05 by boward_k
Hi..-trying to find parts here in sweden..Anyone who knows any good site's or stores(Stockholm). Bovar.kalim@...