where did you patch in the trigger button in on the analog drum ?
I comected it between the 12v rail and the output of the gate-to-trigger cap. So it works as a gate, not as a trigger ie you can hold it down for longer tones
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I got my test panel on aluminum today. One thing that surprised me a little was the back side looks at first glance like bare aluminum, but apparently has a nonconductive coating. I don’t get continuity between multimeter probes touching the back. I do with probes touching the insides of the holes, but it seems if you want a reliable ground plane you have to provide a copper pour. Or maybe the coating can be sanded off, but that’s too much like work.
(Getting something in KiCad where you have a copper pour the part will make contact with seems to be tricky, when you have NPTH. I think I have a footprint that works.)
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thanks for reply , do I see a resistor on the one side of switch ?
Yep! 100k “input” resistor
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Wow mate you are a building machine. Good work.
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As soon as I can sneak away from work for a few minutes I’ll be running over to the post office to pick up my SSSR Labs VC Divider kit. Kind of ordered this in a fit of rage a while ago. I was having constant problems with my stripboard clock divider that I couldn’t figure out for the life of me. The one octave down would just stop working intermittently, I’d pull it out of the rack to test and look at it and it would be fine. Reflowed everything a million times, swapped ICs, did everything I could think of, then eventually just broke down and ordered this one. Less than 24 hours after ordering, I found the problem and fixed my divider for good. Was a bad solder joint that I have no idea how it got past all my reflowing attempts, but the wire was loose and I think when I would rack it other things would touch it and make it pop in and out a little bit.
Not the end of the world though - the SSSR Labs one will also give a fifth down when used as a sub osc, so that’s pretty sweet, and once I get my sample and hold made I’m going to want another anyway, one to use as a sub osc and one as a clock divider.
Plus, almost every patch I make uses 100% of my cables and leaves me wanting to try something else and unable to, so I’ve got 15 more cables and a handful of knobs so that I can finish up knobbing Bassline and have extras for future builds.
In non-diy news, yesterday I borrowed a Turing Machine + Pulses and a Penrose quantizer from someone. That’s been a whole lot of fun for the couple hours I’ve had to play with them so far. Going to be a whole different way of figuring stuff out, but having a blast so far!
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Thats extremely insulting.
Machines WISH they could build as quickly as Dud!
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Quick! Prepare the music share thread! The spaceship is about to take off!
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I need to do another VCA, buy a power supply, make a new case with paint … and also make a good fifteen of panels 
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Well, we’ll be looking forward to your post tomorrow 
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Got my Ultrasound Filters working - Auxiliary Input for the first part, second part is FM modulation on the Aux input, and third part is just triggering with some rolz.
this be the circuit.
A Switched Capacitor Filter with CV Modulation.
The original was a bit different - but I added some sections from old papers Peter B. posted many years ago.
The original is much simpler.
This is Peters original Rollz-5 Ultrasound Filters.
As you can see between the 2, the Arp-Serge assemblage was added, along with Auxiliary input and high frequency output.
The first one I built on paper and it worked, but needed some value adjustments.
I made boards for easier tweaking.
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I just finished building the LMNC Performance VCO, VCA and Filter. After a few mess ups they all seem to be working. I havent put the Arduino or 7 segment display in the VCO yet but it works.
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I bought Volca Beats and did the snare mod to it. I didn’t have surface mount capacitors, so a normal one and some hot glue works just as fine…
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I sold my Volca Bass ages ago…wish I hadnt. I want to make Acieed. Volca Nu Bass might be in my future.
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Managed to finish up the new clock divider! Very quick and easy build, got a good portion of it done on my lunch break yesterday, then squeezed in a bit of time last night and this morning. Only had time for a quick test to make sure everything works before running out the door to work but I’m looking forward to digging into this a bit over the weekend.
On the one hand, I feel like this board is twice the size that it needs to be. On the other hand, the last couple builds were pretty dense and it was a breath of fresh air to have working room.
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Looks nice. I like having a little space to work on a DIY board. Sometimes you really do have to stuff things together (especially if it’s a narrow module and, duh, you forget about the existence of horizontal board mount jacks!) but if not I’m happy to spend a bit more on a roomier board. One of the benefits of Kosmo.
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One day I’ll build a Kosmo rack. I would love a bit of extra space and bigger pots for some things - even with my modest size rack I’m already having troubles with getting in to wiggle knobs and I imagine that problem won’t magically solve itself as the rack builds out and gets more complex! My big problem right now is desk space. I’m pretty well maxed out here as it is, but once I get that sorted out and have expansion room some Kosmo will be coming down the pipeline.
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