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Thread: Nice DC power supply unit?

  1. #11
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,029
    I'm Jez.

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    Quote Originally Posted by nthall View Post
    I don't know a simple way to explain it either. It has circuitry in it that would make it a bad choice as power supply for audio equipment. It would probably introduce line noise into all of your other gear too.

    Even if you unplugged it and just used it like a rechargable battery (not what it's really designed for) you might get an album's worth of dirty power for your DAC if you're lucky.







    Sent from my Z981 using Tapatalk
    It wasn't so much a matter of explaining it as my not wanting to get involved in subjective matters these days... In these "post truth" times no one wants the opinions of experts apparently so my present policy is "let them get on with it"...
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  2. #12
    Join Date: Jan 2017

    Location: Kansas City, Missouri

    Posts: 590
    I'm Nathan.

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    Quote Originally Posted by Arkless Electronics View Post
    It wasn't so much a matter of explaining it as my not wanting to get involved in subjective matters these days... In these "post truth" times no one wants the opinions of experts apparently so my present policy is "let them get on with it"...
    Getting on with it taught me a lot. Turning on the radio in my truck while I was charging the dead battery led to some research.

    I'm far from an expert, but I have a degree in Mechanical Engineering, and I've always been interested in electronics. Doing the wrong thing always sent me to the books, not the store. Working as an engineer sent me into banking.

    Sent from my Z981 using Tapatalk

  3. #13
    Join Date: May 2016

    Location: Much Wenlock

    Posts: 283
    I'm Gary.

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    Quote Originally Posted by nthall View Post
    Getting on with it taught me a lot. Turning on the radio in my truck while I was charging the dead battery led to some research.

    I'm far from an expert, but I have a degree in Mechanical Engineering, and I've always been interested in electronics. Doing the wrong thing always sent me to the books, not the store. Working as an engineer sent me into banking.

    Sent from my Z981 using Tapatalk
    I can't resist any less longer Nathan, have you cut off the bottom of the photo, the bit with the numbers on........sorry

  4. #14
    Join Date: Oct 2016

    Location: Bolton, England

    Posts: 504
    I'm Andrew.

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    Quote Originally Posted by Arkless Electronics View Post
    In these "post truth" times no one wants the opinions of experts apparently...
    I think Michael Gove's comment has been taken out of context. Of course experts should be listened to - it's the people who claim to be experts that we should be wary of. Economics isn't a science anyway and whatever an economist claims it isn't difficult to find another economist with contrary claims.

    Electronic engineering is a lot more reliable and predictable than economics.

  5. #15
    Join Date: Jan 2017

    Location: Kansas City, Missouri

    Posts: 590
    I'm Nathan.

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    No. I just suck at selfies. I can't smile and use a camera at the same time for some reason. There are a few mugshots on record though.

    No offense taken.

    Sent from my Z981 using Tapatalk

  6. #16
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,029
    I'm Jez.

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    Quote Originally Posted by nthall View Post
    Getting on with it taught me a lot. Turning on the radio in my truck while I was charging the dead battery led to some research.

    I'm far from an expert, but I have a degree in Mechanical Engineering, and I've always been interested in electronics. Doing the wrong thing always sent me to the books, not the store. Working as an engineer sent me into banking.

    Sent from my Z981 using Tapatalk
    Vastly better paid anyway!
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  7. #17
    Join Date: May 2016

    Location: Much Wenlock

    Posts: 283
    I'm Gary.

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    Quote Originally Posted by nthall View Post
    No. I just suck at selfies. I can't smile and use a camera at the same time for some reason. There are a few mugshots on record though.

    No offense taken.

    Sent from my Z981 using Tapatalk
    cool.

  8. #18
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,029
    I'm Jez.

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    Quote Originally Posted by RothwellAudio View Post
    I think Michael Gove's comment has been taken out of context. Of course experts should be listened to - it's the people who claim to be experts that we should be wary of. Economics isn't a science anyway and whatever an economist claims it isn't difficult to find another economist with contrary claims.

    Electronic engineering is a lot more reliable and predictable than economics.
    Not according to audiophiles unfortunately! Whilst I'll no doubt make random exceptions I just can't be arsed with wasting my time explaining things to people when they'll usually just say that "Jim and Steve and Quentin on XYZ forum, non of whom know anything about electronics whatsoever, say differently so I'll go along with what they say".. Let them waste their money and fill 40 pages debating stuff that is 100% impossible... telling the truth and sticking to it apparently causes offence and upsets the smooth running of the site so basically I'm done on all that stuff... next time someone insists that putting a carrot on their CD player whilst polishing the mains fuse makes things sound better I'll laugh at them privately but remain out of the debate!
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  9. #19
    Join Date: Jan 2017

    Location: Kansas City, Missouri

    Posts: 590
    I'm Nathan.

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    Economics is more of a game. The logic of engineering transfers to it pretty well.

    I made the mistake of getting into one of those debates yesterday. It's music so there is no way to balance subjectivity with science. Any component, even wire affects the complete circuit. Whether or not it's better isn't universal. Audiophile terminology and pseudo-science doesn't explain why it is better.

    Sent from my Z981 using Tapatalk

  10. #20
    Join Date: Dec 2011

    Location: Portugal

    Posts: 259
    I'm Luis.

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    I had an idea a few weeks ago. After a quick google search, I discovered I wasn't the first person that had it.

    It powers my routers, tvbox, external disk, RPi and it event let's me charge my smarphones and all those things.
    It allowed me to unplugged 5 permanently connected power supplies.

    I just made something similar to this and, I have to say, although there are (much?) better power supplies, I'm pretty happy with it!
    http://jumperone.com/2011/06/atx-power-supply-tutorial/
    And it even runs pretty cool without the fan!
    No costs involved and lots of amps available!

    Please, don't kill me

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