# My build progress
**URL:** https://lookmumnocomputer.discourse.group/t/my-build-progress/345
**Category:** DIY STUFF
**Created:** [March 1, 2020, 8:57pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345 "2020-03-01T20:57:53Z")
**Posts on this page:** 20
**Page:** 187
### Author:  [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)
#### Post date: [August 27, 2021, 9:45am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3745 "2021-08-27T09:45:27Z")
Today the Multi PWM panel
gone for the varnish and cut another piece of wood š
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### Author:  [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)
#### Post date: [August 27, 2021, 1:28pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3746 "2021-08-27T13:28:19Z")
It is a 7 barred Keyboard/Organ - Press a barre to trigger Left Rise, Release for Fall.
Pitchable, Circuit-bendable (the nodes, you can connect with alligator clips, flesh, worms, fishā¦ ), Chaosable (a chaos knob that gets things really hairy/noisey) and just an all around cool thing.
I havent had the chance to take any videos of the mods, as I finished it last night and work this mornin. lol
Here is an old video of Peterās.
[ ](https://www.youtube.com/watch?v=EcavAP_CghA)
This is before I finished it - and was just figuring out the tuning mods.
[https://www.instagram.com/p/CTCq5\_mAcPM/](https://www.instagram.com/p/CTCq5_mAcPM/)
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### Author:  [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)
#### Post date: [August 27, 2021, 2:25pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3747 "2021-08-27T14:25:38Z")
The Multi PWM is complet and the Timbre panel ready for assembling
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### Author:  [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)
#### Post date: [August 27, 2021, 3:20pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3748 "2021-08-27T15:20:30Z")
done , a productive day š
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### Author:  [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)
#### Post date: [August 27, 2021, 3:22pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3749 "2021-08-27T15:22:02Z")
What are those little round things sticking out? Are those tiny trimpots?
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### Author:  [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)
#### Post date: [August 27, 2021, 3:23pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3750 "2021-08-27T15:23:53Z")
yes trimmpot, itās not in the original circuit only because i havnāt this resistors value and have a lot of trimmpot š
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### Author:  [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)
#### Post date: [August 27, 2021, 11:38pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3751 "2021-08-27T23:38:32Z")
Heres a vid of the Sidrassi mods in action š
[ ](https://www.youtube.com/watch?v=8nF4NTZs93U)
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### Author:  [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)
#### Post date: [August 28, 2021, 12:41am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3752 "2021-08-28T00:41:47Z")
> [@analogoutput](#):
>
> I decided I needed an oscillator for my workbench so I built this:
I decided I needed a new oscillator for my workbench so I built this:
The previous one was built on really crappy stripboard and was flaky at best from day one. This one I did on one of my protoboards and I think itāll serve a lot better. Same circuit, different layout. And since I used trimmers this time, I faked a log pot by adding a resistor.
As before, the integrating capacitor is socketed so I can switch off between different frequency ranges.
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### Author:  [@JonM](https://lookmumnocomputer.discourse.group/u/JonM)
#### Post date: [August 28, 2021, 3:16pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3753 "2021-08-28T15:16:43Z")
This week has been about fixing stuff.
My Bassline build all worked except for the dedicated square output. After much troubleshooting it would appear that a trace on the control board was hooped. Soldered a wire where the trace should be going from the header to a resistor and now it works flawlessly!
Then Iāve been trying to fix my Ripples build, which is lacking in resonance. In the troubleshooting process managed to make things worse, ending out past night by somehow managing to kill the FM and cutoff circuits. Reflowed everything on the board this morning and now have it working again, resonance is up from where it was but still not as high as it should be, and I canāt get it to self oscillate, but screw it. Itās working, sounds good, and Iām already feeling short on filters so I donāt want to mess things up again.
In my searching for parts last night I found a spare LM13700, so I think a MS20 filter will be in my near future, at which point maybe Iāll pull ripples from the rack and try to diagnose some more.
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### Author:  [@Stef](https://lookmumnocomputer.discourse.group/u/Stef)
#### Post date: [August 28, 2021, 4:55pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3754 "2021-08-28T16:55:02Z")
today Iāve finished the mixer and the gate/cv expander, and they are working fine. 2 modules in one day is a new personal record š
Next will be the second VCO, and the Midi2CV.
On the breadboard I am currently working on the twin-t 2700, but this will go to the second case. My wife is afraid of getting assimilated by all this suspicous synth stuff š
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### Author:  [@Dave](https://lookmumnocomputer.discourse.group/u/Dave)
#### Post date: [August 28, 2021, 7:09pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3755 "2021-08-28T19:09:36Z")
I really like the panel design, very clean crisp, and intuitive.
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### Author:  [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)
#### Post date: [August 28, 2021, 7:23pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3756 "2021-08-28T19:23:27Z")
Audio mixer. So yeah.
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### Author:  [@Vampyre](https://lookmumnocomputer.discourse.group/u/Vampyre)
#### Post date: [August 29, 2021, 6:47am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3757 "2021-08-29T06:47:25Z")
Finished the LFO panel today (apart from paint). The step drill made life very easy.
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### Author:  [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)
#### Post date: [August 31, 2021, 1:14am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3758 "2021-08-31T01:14:01Z")
Envelope generator. Assembled, but I wonāt try testing it tonight.
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### Author:  [@Vampyre](https://lookmumnocomputer.discourse.group/u/Vampyre)
#### Post date: [August 31, 2021, 8:37am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3759 "2021-08-31T08:37:50Z")
@analogoutput that looks great. What ADSR is that? Is there a strip board layout somewhere?
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### Author:  [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)
#### Post date: [August 31, 2021, 8:57am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3760 "2021-08-31T08:57:17Z")
I think itās the Precision ADSR
> [@Precision ADSR (Kassutronics)](https://lookmumnocomputer.discourse.group/t/precision-adsr-kassutronics/3661):
>
> @analogoutput already talked about it in the forum here and there And I saw recently the article on the [Analog Outputās blog](https://analogoutputblog.wordpress.com/2021/06/17/envelopes-padded/) and decided to prepare a stripboard layout, to build it soon slight_smile Here all details on the Kassutronics blogspot : hereās the schematic (i copy some info in add) I pause a question about the led in the schem it indicates only the output signal of the inverted signal ? is it just used to block the current one way? thereās not indicā¦
I prepared a stripboard for the version of Kassutronics but I am waiting to see the mod and add of @analogoutput to maybe add them
š
BTW : ā[How to loop any envelope](https://lookmumnocomputer.discourse.group/t/diy-synth-electronic-video-for-beginners-moritz-klein/1312/40)ā
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### Author:  [@Vampyre](https://lookmumnocomputer.discourse.group/u/Vampyre)
#### Post date: [August 31, 2021, 9:07am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3761 "2021-08-31T09:07:01Z")
Thanks for the fast reply. I will have to see if I have all the parts.
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### Author:  [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)
#### Post date: [August 31, 2021, 11:46am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3762 "2021-08-31T11:46:49Z")
Yeah, itās the Kassutronics Precision ADSR, but Iāve added stuff for retriggering and looping capability. Details when (if? WHEN) I get it working. (Just got up, still havenāt tested it.)
_Later:_ I am just going to troubleshoot and may be some time.
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### Author:  [@JonM](https://lookmumnocomputer.discourse.group/u/JonM)
#### Post date: [August 31, 2021, 1:52pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3763 "2021-08-31T13:52:46Z")
Finished up my S&H last night, will need to do some troubleshooting. Pots seem to work, all noise outputs work, sample and hold circuit does not.
I had to make a couple of part substitutions due to things being obsolete, so Iām hoping the problem is due to my post-midnight shitty soldering - there were a few sketchy spots when I was looking this morning, but didnāt have time to touch them up before leaving for work this morning.
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### Author:  [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)
#### Post date: [August 31, 2021, 2:16pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3764 "2021-08-31T14:16:31Z")
Iāve prepared some future panels
they are currently drying after painting
during this time I finished assembling my Baby8
a simple circuit on the board but a lot of connections behind š
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