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jleonne

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    NSW
  • Country
    Australia
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    John

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  1. I'm sure this is controversial to say, but I see evidence that switching is better than linear when you want minimal ripple/noise/hum. Large linear power supplies cause excessive audible hum in eurorack modules. EM from linear tends to detune VCOs. Let's just say I want switching. Daitron claims to have switching supplies down to a mere 1mVp-p. It's very expensive though. They also have 10mVp-p versions, which are somewhat afforable, and I was wondering if there are any (cheaper) alternatives out there.
  2. That is rather impressive! I will keep that in mind for other projects. For this current project of mine, I should have been more clear. When I wrote "more or less W & A is fine.", I was hoping for the current range to be around the 0 ~ 3A mark like the mean well. 2A is minimum for me. This needs to power a eurorack system of about 300HP.
  3. The specification of that one mentions ripple&noise: 120mVp-p. I'm looking for a much lower value, closer to 10mVp-p.
  4. Hi, I'm looking for an Australian seller / distributor of a 12V switching power supply, something like the Mean Well RS-35-12: https://www.meanwell-web.com/content/files/pdfs/productPdfs/MW/Rs-35/RS-35-spec.pdf But then with a ripple & noise closer to 10mVp-p. More or less W & A is fine. Does anyone know of such a power supply?
  5. Hi All, I bought a Furman Classic Series PL 8 C E Power Conditioner, in the hope that it would add an additional layer of protection in front of my music gear against power surges (we've had several over the past years, burning out or exploding house-hold appliances such as toaster, gas-heater, several modems). The power conditioner is for use in a studio room for music production. Unfortunately it appears to hum by itself, which is really annoying in what is otherwise a quiet room -- https://drive.google.com/file/d/1tg6cZs1n-ZQOiOTxpx-Qqy_MfumUablC/view starts at 0:07. The hum is
  6. Hi All, at the moment struggling with the fundamentals: the mains in our house! For years I've felt it's terrible, once in a while things blow up, and the last straw that broke my camel's back is a brand new power conditioner that is humming when plugged in. Looking to learn more about pure sine wave UPSs and DC blockers. Cheers, John.
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