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2015-10-04 by Ken Stone
First possibility is a clock speed issue. Put a something in the range of 1M to 4M7 between pins 1 and 3 of the TL072. That should sharpen up the clock a little. On Sun, Oct 4, 2015 at 10:18 AM, Andrew oozitron@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Just did some more
2015-10-03 by Andrew
Just did some more testing and found that: Step Output #4 fires when the sequencer is on step #3 and again on step #4 Step Output #8 fires when the sequencer is on step #7 and again on step #8 All the other Step Outputs (1, 2, 3, 5, 6, 7) fire as they should. Something related to
2015-10-03 by Andrew
I fired up a Sequential Switch (the V1 model if that matters) that I built long ago. I was playing with plugging the SeqSw step outputs (P1, P2, etc) to the Clock IN on my newly built Gate Sequencer and noticed that while steps 1, 2 & 3 advance the Gate Seq as you would expect, s
2015-10-03 by bill bigrig
3), Yes, why isn't there a vocoder kit out there with 16 bands? I've had the 8 band Paia unit for 30 years and it's good but, I want more! Rig -------------------------------------------- On Fri, 10/2/15, Ken Stone otherunicorn@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: S
2015-10-02 by Ken Stone
1) Yes, I can see no reason why the 50k could not be used. 2) No, I don't sell the 102 and 108 separately because of licensing. 3) It does sound rather like you are 80% of the way to making it into a vocoder. 4) I do have enough WAD boards for the Jon S panel. Ken On Sat, Oct 3,
2015-10-02 by jammie.emma
creating an extended vc resonant eq ken looking at the dcsm schematics if i use 10 x cgs102a/b for the crossfade mixer and 20 x cgs108 gain cells with a pot for the crossfade and and a socket for the cv this will take care of the mix q of the input/feedback and if i add 10x cgs10
2015-09-26 by Ken Stone
Cool :) On Sat, Sep 26, 2015 at 11:33 AM, Andrew oozitron@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Ah! Yes, now it works :-) My, umm, testing verifies that using the RST pad can in reality lock the sequence at step 0... Working great now! Love my new toy! thanks again K
2015-09-26 by Andrew
Ah! Yes, now it works :-) My, umm, testing verifies that using the RST pad can in reality lock the sequence at step 0... Working great now! Love my new toy! thanks again Ken for such wonderful boards :-) Drew To: cgs_synth@yahoogroups.com From: cgs_synth@yahoogroups.com Date: Sat
2015-09-25 by Ken Stone
RSP. The other would in theory lock the sequence at step 0. Ken On Sat, Sep 26, 2015 at 2:07 AM, Andrew oozitron@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Argg... that's exactly what I've done and it's still wacked... Should I be using the RST or the RSP pad for the rese
2015-09-25 by Andrew
When wired (and working properly) this way, should I see one lit LED at all times, or will #1 & #9 be lit together, #2 & #10, #3 & #11, etc? Right now there's always two LEDs lit... Drew To: cgs_synth@yahoogroups.com From: cgs_synth@yahoogroups.com Date: Fri, 25 Sep 2015 12:07:05
2015-09-25 by Andrew
Argg... that's exactly what I've done and it's still wacked... Should I be using the RST or the RSP pad for the reset wire? Drew To: cgs_synth@yahoogroups.com From: cgs_synth@yahoogroups.com Date: Fri, 25 Sep 2015 12:57:14 +1000 Subject: Re: [cgs_synth] CGS89 x2 step 9 goes to th
2015-09-25 by Ken Stone
step 9 goes to the sequencer's own hold, an the other unit's reset, and vice versa. both get the same clock. On Fri, Sep 25, 2015 at 12:20 PM, Andrew oozitron@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Is it possible to join two CGS89 Gate Sequencers to make a 16 step uni
2015-09-25 by Andrew
Is it possible to join two CGS89 Gate Sequencers to make a 16 step unit? I just want a Clock In and a Reset button, no need for length controls or reset jacks for this project. I have two CGS89s built, but I can't figure out how to wire them into a dedicated 16 step. I connected
2015-09-18 by samuelwecoff
After ten years of gathering dust on my bench, i finally finished my CGS07 gate sequencer last night. It seemed to be running just fine at first, but a few minutes into testing, it deadlocked on step one. I read about the issue in the build instructions, and tried toggling the lo
2015-09-03 by Stevie Richards
I won't Ken. It's just another thing I haven't run into yet and it's good to know for future maintenance. Considering that panel has been gigged by me constantly since late 2010 and travelled through Singapore, Japan , All over Europe and crisscrossed the USA in 2014 ; it's held
2015-09-03 by eidorian_aladan_net
I've gotten so frustrated that I actually pulled some of my hair out, but not very often, and never with any of your boards Ken :) Cheers, A. On 2015-09-03 12:13, Ken Stone otherunicorn@gmail.com [cgs_synth] wrote: promise me you won't pull your hair out! On Thu, Sep 3, 2015 at 1
2015-09-03 by Ken Stone
promise me you won't pull your hair out! On Thu, Sep 3, 2015 at 10:46 AM, Stephen Richards okayjustalittle@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Its was the pot after all that. Thanks Ken From: "Ken Stone otherunicorn@... [cgs_synth]" cgs_synth@yahoogroups.com > To:
2015-09-02 by Stephen Richards
Its was the pot after all that. Thanks Ken From: "Ken Stone otherunicorn@... [cgs_synth]" To: cgs_synth@yahoogroups.com Sent: Thursday, September 3, 2015 9:17 AM Subject: Re: [cgs_synth] CGS48 VCO problem It could be. Try that first. Also: Try new power wires back to the PSU. Mak
2015-09-02 by Ken Stone
It could be. Try that first. Also: Try new power wires back to the PSU. Make sure the wires to the panel controls aren't tightly bundled with something that could cause interaction. On Thu, Sep 3, 2015 at 8:51 AM, Stephen Richards okayjustalittle@... [cgs_synth] cgs_synth@yahoogr
2015-09-02 by Stephen Richards
Hi Ken After removing and careful studying the PCB , i tested it. It seemed stable. Then when i put it back in the panel it started warbling again. Do you think this could maybe be a stuffed Freq Pot ? From: "Ken Stone otherunicorn@... [cgs_synth]" To: cgs_synth@yahoogroups.com S
2015-09-02 by Ken Stone
It can be powered without the panel wiring. On Wed, Sep 2, 2015 at 3:29 PM, Stephen Richards okayjustalittle@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: I've completely removed the CGS48 pcb from the panel. Checked with backlight , repaired one borderli ne track (that led
2015-09-02 by Stephen Richards
I've completely removed the CGS48 pcb from the panel. Checked with backlight , repaired one borderli ne track (that led eventually to the LM394) with a link. It was one leg of the 100n just after the FM AC pad. Before i go and solder it back in ; can i power it up and test it as
2015-08-28 by Ken Stone
Looks good! On Sat, Aug 29, 2015 at 7:48 AM, Paul Bower paul@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: A little belated, but I also finished my CGS07 Gate Sequencer - populated boards also sat around for twelve years The CGS07 worked straight off the bat, I even managed
2015-08-28 by Paul Bower
A little belated, but I also finished my CGS07 Gate Sequencer - populated boards also sat around for twelve years The CGS07 worked straight off the bat, I even managed to wire the switches correctly first time. I decided to go for a full 5U wide panel design and that meant wiring
2015-08-28 by kevin siegenthaler
Errr.........ahh,,,,,,,,,,OK. I will be commin by around 1:00 this afternoon. I got troubles, I accedently smoked the 74c150 you gave me the other day, I ordered Six from UT Source. They should be here by mid September, Can I bum another one so I can finish this TKB? please pleas
2015-08-27 by Stevie Richards
Do you mean in physical contact ? It is. On 28 Aug 2015, at 3:23 am, "Dmitri SFC dankedout415@... [cgs_synth]" cgs_synth@yahoogroups.com > wrote: make sure the tempco is coupled to the transistor pair. --
2015-08-27 by Dmitri SFC
make sure the tempco is coupled to the transistor pair. --
2015-08-27 by babysealclub
Print a copy of the pcb art work. Test each trace and then highlight that trace on the print out. I usually probe component legs, then I'm also checking the soldering. Good Luck! -TF
2015-08-27 by Stephen Richards
Same unfortunately Ken, I think i have a problem with a broken track. I'll let you know later. From: "Ken Stone otherunicorn@... [cgs_synth]" To: cgs_synth@yahoogroups.com Sent: Thursday, August 27, 2015 10:41 AM Subject: Re: [cgs_synth] CGS48 VCO problem Correct. Pin 7 of the st
2015-08-26 by Ken Stone
Correct. Pin 7 of the stable VCO goes to the lifted end of the 56k on the bad VCO. Note that it may sound a little flat as you will have two loads on pin7. On Thu, Aug 27, 2015 at 10:16 AM, Stephen Richards okayjustalittle@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Hi Ken
2015-08-26 by Stephen Richards
Hi Ken, I still haven't solved the mystery of the warbling CGS48 VCO. If i was to test the core of the faulty VCO with the mixer section of the good VCO should i lift one side of the 56K resistor and clip the signal directly from pin 7 of the TL072 of the good VCO ? Just trying t
2015-08-22 by Shaikat Hossain
Actually I have contacted Bernie and he has agreed to post that particular article online. I have also purchased the Musical Engineer's Handbook. I didn't mean to start a stir with my original post. I honestly had never heard of Electronotes before. I work in academia and am used
2015-08-22 by data2action
yikes, and sorry! i was responding the original request for "sharing", not to your offer to resell, sincere apologies if that was not clear. purchasing the electronotes set was probably the best single investment i ever made in learning SDIY, i highly recommend that anyone intere
2015-08-22 by bill bigrig
Thanks, it means a lot. -------------------------------------------- On Fri, 8/21/15, otherunicorn@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Subject: Re: [cgs_synth] Re: Jan Hall's Electronotes paper? To: cgs_synth@yahoogroups.com Date: Friday, August 21, 2015, 6:04 PM I
2015-08-22 by cg_synth
I'm sure bbob was replying to the original request, not to your sale. Bernie may even chose to put the requested article online. It would not be the first time he has done so.
2015-08-21 by bill bigrig
I firmly agree. My intent was not to share a tid-bit of free info. It is my intent to only move these boxes if someone buys it ALL. Sort of like selling a used book or CD. I hope you do not find that objectionable. As I stated, I was going to put it to good use, but am no longer
2015-08-21 by bbob
Information about purchasing electronotes is available here: http://electronotes.netfirms.com/PricesShipping.html . these are copywrited and are still for sale from the publisher, and so are not available for "sharing". bernie devoted years of his life creating these publications
2015-08-21 by bill bigrig
I don't know exactly when that was written, but I bought all of them up to 2005 for $300. Do you want to buy them from me? No reasonable offer refused. My health cut me down right about that time, and all my big plans and projects are no longer feasible for me. Anyway, if you giv
2015-08-21 by Shaikat Hossain
I'm not familiar with Bernie. Do you happen to have his email? Sent from my iPhone On Aug 20, 2015, at 7:42 PM, otherunicorn@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: You could try asking Bernie directly.
2015-08-20 by nihil667
Hello, On the following page: Ken Stone's Modular Synthesizer Ken Stone's Modular Synthesizer Descriptions of the various modules in a home built music synthesizer. View on www.cgs.synth.net Preview by Yahoo There is a reference to Jan Hall's Electronotes paper. I just purchased
2015-08-20 by cg_synth
You could try asking Bernie directly.
2015-08-20 by Shaikat Hossain
Hi, I was wondering if someone could share the Electronotes paper by Jan Hall detailing the design used in the Bi-N-Tic filter? I am interested in studying the design to better understand the theory behind the module. Best, Shaikat
2015-08-20 by Stephen Richards
I'll try, so pin 7 of TL072 of stable VCO to bad VCO ? I just can't understand what it could be if it's before that TL072. On 20 Aug 2015, at 2:28 pm, "Ken Stone otherunicorn@... [cgs_synth]" cgs_synth@yahoogroups.com > wrote: I doubt it. The earlier test suggests that the proble
2015-08-20 by Stephen Richards
I haven't tried that. On 20 Aug 2015, at 2:28 pm, "Ken Stone otherunicorn@... [cgs_synth]" cgs_synth@yahoogroups.com > wrote: I doubt it. The earlier test suggests that the problem is with the mixer. Have you tried driving the drifting core from the mixer of the stable VCO? On Th
2015-08-20 by Ken Stone
I doubt it. The earlier test suggests that the problem is with the mixer. Have you tried driving the drifting core from the mixer of the stable VCO? On Thu, Aug 20, 2015 at 12:11 PM, Stephen Richards okayjustalittle@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Hi Ken, This
2015-08-20 by Stephen Richards
Hi Ken, This thing is still causing me grief. Supply voltages at chips are fine. Could that 2N4856 be a problem ? From: "Ken Stone otherunicorn@... [cgs_synth]" To: cgs_synth@yahoogroups.com Sent: Sunday, August 16, 2015 5:54 PM Subject: Re: [cgs_synth] CGS48 VCO problem Yes, it
2015-08-16 by Stephen Richards
It just feels like it has very loose spring tension on the adjustment screw. I'll check continuity around that area. Failing that being the problem , i'll swap it out. From: "Ken Stone otherunicorn@... [cgs_synth]" To: cgs_synth@yahoogroups.com Sent: Sunday, August 16, 2015 5:54
2015-08-16 by Ken Stone
Yes, it could be a failed span trimmer. Is there some reason you suspect it? On Sun, Aug 16, 2015 at 3:31 PM, Stephen Richards okayjustalittle@... [cgs_synth] cgs_synth@yahoogroups.com > wrote: Voltage on Pin 7 of that TL072 is fluctuating in time with the pitch. CA3140 has 15V o
2015-08-16 by Stephen Richards
Voltage on Pin 7 of that TL072 is fluctuating in time with the pitch. CA3140 has 15V on Pin 7 and -15V on Pin 4. When i feed Pin 7 of that TL072 to the good VCO , it warbles. Could this be a failed 10K SPAN Trimmer ? From: "Ken Stone otherunicorn@... [cgs_synth]" To: cgs_synth@ya
2015-08-16 by Ken Stone
the first thing is to work out where it is occurring. Take the voltage from pin 7 of the TL072 that is connected to the 56k feeding the LM394. Monitor it on a scope, or feed it into the CV input of the other VCO. If it warbles, you problem is likely to be in the mixer stage. If t