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DS 7 clone
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Scott Stites
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PostPosted: Fri Oct 20, 2006 6:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
Dunno what's more frightening, you or the teminator


Which is which?

Quote:
Oh dear- because of the alphabetical ordering, the DS7 has taken the place of King Klee. We cannot allow this!!!


Gasp! Well, actually I think the stickies appear in precedence to the most recent post. The anti-kleeites will have to filibuster to keep the Klee down. Very Happy

Besides, I wanna build one of these things too (all together now) One of these days..

Cheers,
Scott
Whose camping trip has been postponed due to Mrs. Klee's greater than expected discomfort after minor sinus surgery.
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v-un-v
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PostPosted: Sat Oct 21, 2006 2:18 am    Post subject: Reply with quote  Mark this post and the followings unread

Scott Stites wrote:

Gasp! Well, actually I think the stickies appear in precedence to the most recent post. The anti-kleeites will have to filibuster to keep the Klee down.


Jan came to my rescue last night and suggested some alternatives to my rather sticky problem- so I'll try to address that later.

Scott Stites wrote:

Whose camping trip has been postponed due to Mrs. Klee's greater than expected discomfort after minor sinus surgery.


oooooh that's gotta hurt! Shocked

PS- talking of camping trips, I think I worked out what "A tinned teardrop also tapered" might refer to;

http://www.kuffelcreek.com/

I WANT ONE!!! Very Happy

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ACHTUNG!
ALLES TURISTEN UND NONTEKNISCHEN LOOKENPEEPERS!
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKSEN.
IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.
ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN.
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Joel



Joined: Sep 12, 2006
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PostPosted: Sat Oct 21, 2006 5:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi guys,

a great little project here, hoping I can put one together next weekend! A few questions before I order all the parts though (as always).....

- dnny, the pics you posted of your dual ds7 have 7 pots per half (ie all the regulars plus the vca input level), and 4 jacks - trigger in, vca in, audio out, what's the last one?

- is there a simple way to mix the signals into a common output?

- can any type of piezo be used (I'm seeing ones ranging from tiny uncased to big speaker style), and is it just a case of mounting them on the case and hitting them? And if so, how do you isolate them so you don't trigger both?

It's late so I might just be being dense, cheers for any help though!

Joel
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dnny



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PostPosted: Sun Oct 22, 2006 5:56 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi Joel,
the fourth jack is just an extra one - it´s at the moment NC (not connected). when i was drilling the case i thought that two extra holes can´t be bad Smile

for mixing the two signals try this Ultra-Simple Mono Audio Mixer
or this passive one:
Posted Image, might have been reduced in size. Click Image to view fullscreen.
(the resistor values are not critical, but the summing resistors and pots should be about the same value, i.e., for 50k pots use 50k summing resistors)


any type of piezo should work - remember to adjust the trigger sensitivity for your piezo and that's it.

for the isolation of two piezos use foam and soft materials - or just use external trigger pads (piezos)
here are nice instructions how to make trigger pads and how to isolate them Solid State Percussion Synthesizer

good luck on your project

thanks Tom for making this sticky - and sorry for all that i haven´t been around so much . . . lots of projects and work right now but i will be back Smile

daniel

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Joel



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PostPosted: Sun Oct 22, 2006 8:08 am    Post subject: Reply with quote  Mark this post and the followings unread

excellent, thanks for the info!

rapidelectronics here I come Very Happy
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Wild Zebra



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PostPosted: Mon Oct 23, 2006 7:14 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
PS- talking of camping trips, I think I worked out what "A tinned teardrop also tapered" might refer to

Eureka! I just had a healthy dose of Beefheart this weekend. I never tire of it. Ds7's soon, closing the gap on my list!!

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EraSer



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PostPosted: Mon Oct 23, 2006 4:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yes!My DS7 clone is born. surprise It works ok and sound very "electronic".I'm ready to build another DS7...and another ....another....another....... Laughing
I have housed it temporarily in a cartoon case...and it looks to me very cool Cool
So....Thanx Dnny for this thread. Wink


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Pehr



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PostPosted: Mon Oct 23, 2006 10:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

Nice! Shocked

I like the text Cool

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EraSer



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PostPosted: Mon Oct 23, 2006 11:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanx Pehr Wink
I've made text whit multisurface 3D colour.
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dnny



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PostPosted: Tue Oct 24, 2006 12:56 am    Post subject: Reply with quote  Mark this post and the followings unread

wow - that looks really nice - not that "lab gear"- look but cool in other ways banana and really nice that its working.

did you substitute the LM324 whit CA324 or HA17324?

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EraSer



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PostPosted: Tue Oct 24, 2006 1:10 am    Post subject: Reply with quote  Mark this post and the followings unread

dnny wrote:
did you substitute the LM324 whit CA324 or HA17324?

Thank you Dnny.
Yes I've used these two different ICs like subsitutes of LM324 and DS7 sounds good. Very Happy
Just few questions to know how to use it better:
1) I have added momentary push button for the manual trigger mod:maybe I don't understand how to use it Embarassed .What do you think saying "you get continuos signal if you hold the button down"?
2)What can I put in VCA input?
3)I don't have intense changes when I turn VCO pot.Why?
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dnny



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PostPosted: Tue Oct 24, 2006 5:09 am    Post subject: Reply with quote  Mark this post and the followings unread

balance wrote:

1) I have added momentary push button for the manual trigger mod:maybe I don't understand how to use it Embarassed .What do you think saying "you get continuous signal if you hold the button down"?


by signal i mean the sound of the "drum" - so when you push that button you should hear the sound - and when you release the sound should decay.
balance wrote:

2)What can I put in VCA input?


if you have some noise source plug it´s output to VCA input and you get "cymbal" or "hihat"-kind of sounds.
a radio tuned off channel works fine or you can input "any" audio signal. CD-player or such.. go experiment.

balance wrote:

3)I don't have intense changes when I turn VCO pot.Why?


there is a problem in the main Oscillator. the pitch should change when you turn that knob. triple check connections and look for short circuits.

Hope this helps
daniel

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mosc
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PostPosted: Tue Oct 24, 2006 11:17 am    Post subject: Reply with quote  Mark this post and the followings unread

Balance. It looks great... Very Happy
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goodrevdoc



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PostPosted: Tue Oct 24, 2006 1:40 pm    Post subject: Reply with quote  Mark this post and the followings unread

Balance, that's cool. We DEMAND soundclips! Wink Now, as soon as my stupid parts get here...
-justin
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dnny



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PostPosted: Tue Oct 24, 2006 2:30 pm    Post subject: Reply with quote  Mark this post and the followings unread

goodrevdoc wrote:
Balance, that's cool. We DEMAND soundclips!


sound clips could also help whit the trouble shooting.
so if possible please post some.

have you read the MFOS General Trouble-shooting Info? That could also help you get the OSC up and running.

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EraSer



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PostPosted: Tue Oct 24, 2006 3:33 pm    Post subject: Reply with quote  Mark this post and the followings unread

This is a sample of my DS7.
DS7_clone

@mosc & goodrevdoc :thank you! Wink

@ Dnny:I've solved the VCO problem.I had made wrong connection Embarassed soldering the 22 Ohm resistence from vco pot to GND and not to V+ Rolling Eyes

Last edited by EraSer on Tue Oct 24, 2006 4:00 pm; edited 1 time in total
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dnny



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PostPosted: Tue Oct 24, 2006 3:46 pm    Post subject: Reply with quote  Mark this post and the followings unread

balance wrote:
This is a sample of my DS7.



sounds ok to me. i did not hear the sweep on that sample but if its working - good.



[edit: added comment about the sample - removed old comment asking for sample]

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Last edited by dnny on Fri Oct 27, 2006 4:49 am; edited 1 time in total
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Pehr



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PostPosted: Wed Oct 25, 2006 4:50 am    Post subject: Reply with quote  Mark this post and the followings unread

Does anyone know what J19, J20 and J21 connects to in the DS8 schematic? Is it the 50kA(?) trimmer? or a switch? in that case where does the trimmer go? Confused
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dnny



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PostPosted: Wed Oct 25, 2006 5:15 am    Post subject: Reply with quote  Mark this post and the followings unread

it´s a switch (SPDT) to change the noise.

and the trimmer 50K(sens/RV1) is for the trigger sensitivity, up and left on the schem J2 trig in connects to the trimmer.

i would put instead a potentiometer (if you have space in panel)- so its easy to set the trigger sensitivity.

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nisios



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PostPosted: Thu Oct 26, 2006 1:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

is there any possibility of putting attack on these things with a simple mod?
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dnny



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PostPosted: Thu Oct 26, 2006 2:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

nisios wrote:
is there any possibility of putting attack on these things with a simple mod?


maybe there is a simpler mod than this - but you could ad this
Retriggerable AR Envelope Generator and connect it straight to DS7 VCA voltage input (pin5 on CA3080 or pin 1 on LM13700)

but i kind of like the fast attack of DS7.

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vibesmaster



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PostPosted: Thu Oct 26, 2006 3:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

hi guys im very new to all this and have just received my pcb from m.bareille , got the info with it and on the wiring info it says for the rate pot connect pot pins 2 and 3 together but in the wiring schematic and the wiring picture on the site it says wire 2 to 1 ?its the same on decay aswell not sure what to do , also the wires that run to ground were do i wire them ? sorry for asking such newbie questions , but im very keen on learning Very Happy hopefully with your help ill have it finished and a video up on youtube to go with my synare 3 vid Laughing


heres the link to the synare 3 vid its very similar to this ds-7 clone http://www.youtube.com/watch?v=tIHLKMcpwqo


wicked site this is i love it Wink
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dnny



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PostPosted: Thu Oct 26, 2006 3:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi vibesmaster,

it´s safe to wire the pots on both ways 2 and 3 together or 2 and 1 together. it affects on the min and max positions (min on left max on right or the other way round)- i don't remember witch one is correct Smile but if you wire 2&3 and you get unwanted results you can swap the wires later.

all the ground wires connect whit the battery ground (-) usually the black wire.

HTH
daniel

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nisios



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PostPosted: Thu Oct 26, 2006 4:22 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks dnny. I thought about totally bypassing the release generator from the ds7 and adding a new circuit like that from music from outer space ( or for a full adsr ) but what i was acctually asking was more like a modification of the ds7 pcb... so i didnt had to draw a new pcb.
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vibesmaster



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PostPosted: Fri Oct 27, 2006 12:27 am    Post subject: Reply with quote  Mark this post and the followings unread

thanks dnny hopefully have this working tonight now Razz
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