Mainly I am surprised by the total change of tone. You are putting my knowledge base and other things in doubtful quotes. The knowledge base does indeed exist, your email was added to it, and I am planning on testing and adding in the diode to future kits and documentation. It’s closed to protect the privacy of the users within, but I do maintain one because, as this thread shows, sometimes a user has an issue that the maker has never experienced. It does happen, and this is the proof of it.
Not once in our many emails did you state that you felt I was being dismissive. If you had I would have tried to correct something. The “you” on this forum and the “you” who emailed me have completely different tones.
The doubtful quotes were specifially a response to the fact that someone else had just told me that you had been made aware of this issue previously. Something that should have been in your knowledge base.
I didn’t mention I felt dismissed because when you dismissed my issue, I came here and immediately received a solution. At that point the only thing I felt I needed to do was tell you it was solved.
And yes, the tones would be quite different for two reasons.
- Because up until the end I felt that the issue was most likely my fault. That is why I kept delaying sending you my power supply, and trying various things on my end before wasting your time and my money. It was specifically your comment that suggested that it was almost impossible that what I was reporting could actually be happening that changed my tone - Even after sending you @analogoutput’s very detailed and descriptive video to review and comment on.
- You’d been told about this before. Look at where my tone changes. It’s immediately after learning that fact.
Again, to make sure we’re on the same page - if I’d have followed your policy, I’d have wasted my money and your time. However, you seemed to dismiss my suggestion that this might be related to the circuit design and again offered up your replacement for difference in cost between a kit and a pre-built unit (because your bench tests would have certainly found my PSU working fine). I had already replaced the wall wart at my cost, and the regulator at my (minor) cost in attempts to discover what I was doing wrong on my end. Ultimately, my issue is only solved because I came here and asked for help (knowing how unlikely it was that the issue was being caused by any of the remaining components on the PSU being faulty).
Frankly I’m not even mad and I’d absolutely purchase AI-Synthesis products again in the future. To your credit, you were quite responsive, and I do believe that you were trying your best to help me. I don’t know why you said you weren’t made aware of this issue, but I’ll chalk that up to support volume and the fact that you’re just one guy. I apologize for my change in tone, but your comment that suggested what I was saying to be near impossible really rubbed me the wrong way
Fortunately my ruffled feathers ultimately led me here, to a solution.
I am very glad you found a solutions, and that I am now aware of it.
I was not and am still not personally aware of anyone contacting me about this issue in the past (I searched a few times during and after supporting your ticket and found nothing).
I am very glad that this can be improved in the future though. I have devised a way to simulate the late charging of the regulators and when I have a moment and get off crutches I look forward to testing that.
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Yeah, I’m still really interested to know whether there’s something specific to the Kosmo format that makes this issue more likely to affect it. The fact that you weren’t aware of this would seem to suggest that standard eurorack must be far less impacted. Very strange.
Kosmo and Eurorack are electrically identical (other than that Eurorack has the optional +5 V and distributed gate/CV). It may be dependent on the specific brand or batch of regulator, the modules connected to the PSU, or just random variations between regulators.
See the above link to a modwiggler post where a Eurorack user experienced this problem (with MIAW and FC PSUs) or not depending on which modules were being powered.
Would be quite the coincidence that the regulator the kit shipped with and the cheap bulk amazon one I used for testing exhibited the exact same behavior unless it was more widespread than @AI-Synthesis 's experience suggests (Safely assuming he sells WAY more of these to eurorack users than Kosmo users). In my testing I was able to reproduce the problem with just one module plugged in - and I swapped out which module that was a few times just to ensure it wasn’t being caused by a specific module (or type).
I guess we’ll probably never know for certain.