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  1. #121
    Senior Member Pascal Hibon's Avatar
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    Oct 2006
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    Belgium
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    Quote Originally Posted by kingswindsor View Post
    Looks good, it's inspiring me to upgrade too. Could I ask where you source your library power supplies and the specs? Thanks
    Thank you!

    I made the power supply PCB's myself. These where created for another project a couple of years back. And since I still had a few bare PCB's available I used those. The power supply is built around the LM350 (or NTE1929 is also an option). These are 3A adjustable regulators. Both PCB's, which are stacked upon each other by means of 45 mm standoffs, are set to output 5 volts.
    The toroid transformer has two secondary windings, one for each power supply board.


    The small PCB behind the transformer in the image is a 12 volts trigger input. The player can be switched on and off by a remote device.

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    Yamaha A-S3000 (sliver) -> Focal Electra 1028 Be
    1 x SB Boom, 1 x SB Radio, 1 x SB Touch and 2 x RPI 2B
    1 x SB3 and 1 x SB Touch in storage
    ReadyNAS NVX for storage
    RPI 2B running LMS 7.9.2.
    iPeng on iPhone, SqueezePad & iPeng on iPad.
    http://www.last.fm/user/phibon

  2. #122
    Senior Member
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    Oct 2013
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    112
    Quote Originally Posted by Pascal Hibon View Post
    Thank you!

    I made the power supply PCB's myself. These where created for another project a couple of years back. And since I still had a few bare PCB's available I used those. The power supply is built around the LM350 (or NTE1929 is also an option). These are 3A adjustable regulators. Both PCB's, which are stacked upon each other by means of 45 mm standoffs, are set to output 5 volts.
    The toroid transformer has two secondary windings, one for each power supply board.


    The small PCB behind the transformer in the image is a 12 volts trigger input. The player can be switched on and off by a remote device.

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Size:  58.5 KB
    Good info, thanks Pascal but you are more advanced than I am! I am not at the stage of building one myself at the moment but is there a commercially available alternative that might be used/adapted? Switched power supplies are obviously generally available but linear power supplies to plug in and integrate seem to be difficult to find off the shelf. I do have an iFi power supply for one piCorePlayer but only noticing marginal improvements if any (but certainly no complaints).

  3. #123
    Senior Member Pascal Hibon's Avatar
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    Oct 2006
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    Belgium
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    Quote Originally Posted by kingswindsor View Post
    Good info, thanks Pascal but you are more advanced than I am! I am not at the stage of building one myself at the moment but is there a commercially available alternative that might be used/adapted? Switched power supplies are obviously generally available but linear power supplies to plug in and integrate seem to be difficult to find off the shelf. I do have an iFi power supply for one piCorePlayer but only noticing marginal improvements if any (but certainly no complaints).
    It is not necessary to build your own power supplies; there are other options readily available. For example, a search on ebay resulted with this: https://www.ebay.com/itm/LT1083-Adju...-/324221756444

    There are also a lot of very good switched mode power supplies available too. Technology has come a long way and most of them are pretty quite. The key thing in this build was to separate the RPI and display from the audio parts. The RPI for example adds some noise to the power supply rail due to its processor operating.
    Yamaha A-S3000 (sliver) -> Focal Electra 1028 Be
    1 x SB Boom, 1 x SB Radio, 1 x SB Touch and 2 x RPI 2B
    1 x SB3 and 1 x SB Touch in storage
    ReadyNAS NVX for storage
    RPI 2B running LMS 7.9.2.
    iPeng on iPhone, SqueezePad & iPeng on iPad.
    http://www.last.fm/user/phibon

  4. #124
    Junior Member
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    Feb 2020
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    7

    FitnessPi

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  5. #125
    I've put together a Pi-based server which I use as a test server and as a (relatively) portable server which I take with me when visiting family.

    It's based on a Raspberry P 3B with a 2Tb SSD drive which carries a copy of my main library. I went through several iterations of this case, which used the main case body from an unused media player that I had kicking around the house. I don't much care for screens or glowing LEDs, so this is a bit Hotblack Desiato (who as I recall had a particularly black spaceship), though I did fit a red LED momentary switch on the rear of the unit. The momentary switch operates via an OnOff SHIM which connects via GPIO pins.
    The front plate attaches via magnets so it can be easily detached to allow access to the SSD drive. The microSD card is mounted via a ribbon cable adapter so it's accessible without opening the case.

    This server runs on pCP 6.1.0 and LMS 8.0.1. It isn't used as a player and I generally use the web interface and the Material skin to control it.

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    Robert
    Home: Raspberry Pi 3/pCP6.1.0/LMS8.0.0/Material with files on QNAP TS-251A
    Touch > DacMagic 100 > Naim Audio Nait 3 > Mission 752 (plus Rega Planar 3 > Rega Fono Mini; Naim CD3)
    2 x Squeezebox Radios, 1 X Squeezebox 3 (retired), spare Pi2/piCorePlayer
    Office: LMS8.0.0 running on Raspberry Pi3; Raspberry Pi 3 player with touchscreen/piCorePlayer/IQaudIO DAC and Amp
    Portable: Raspberry Pi Zero/pCP6.1.0/LMS8.0.0/Material, files on Seagate portable drive, powered via power brick

  6. #126
    Senior Member Greg Erskine's Avatar
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    Cool!

    What sort of temperatures do you get using a sealed housing?

  7. #127
    Quote Originally Posted by Greg Erskine View Post
    Cool!

    What sort of temperatures do you get using a sealed housing?
    After several hours, it feels barely warm to the touch. The main body is aluminium, and the end plates are perspex, also there's a fair bit of space inside for air to circulate.

    Robert
    Home: Raspberry Pi 3/pCP6.1.0/LMS8.0.0/Material with files on QNAP TS-251A
    Touch > DacMagic 100 > Naim Audio Nait 3 > Mission 752 (plus Rega Planar 3 > Rega Fono Mini; Naim CD3)
    2 x Squeezebox Radios, 1 X Squeezebox 3 (retired), spare Pi2/piCorePlayer
    Office: LMS8.0.0 running on Raspberry Pi3; Raspberry Pi 3 player with touchscreen/piCorePlayer/IQaudIO DAC and Amp
    Portable: Raspberry Pi Zero/pCP6.1.0/LMS8.0.0/Material, files on Seagate portable drive, powered via power brick

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