WTD: 12v Linear Power Supply.

[TonyRoma]

Hi, as per title looking for a power supply for my Pathos Aurium Headphone amp
rated at 12v/5amp preferably in black. Many thanks. Tony.

[Light Dependant Resistor]

Hi Tony

You could build to your exact requirements. A LM338 is a voltage regulator capable of 5 amps output and you can set its exact voltage,

I have done the maths for you, you will need 1x 220 ohm resistor, 1x 1800 ohm resistor a 100 ohm resistor
also 1x 10 uf capacitor and 2x 1000uf 3 capacitors @ 25v

You will need a incoming supply and suggested is a 20VA fused toroidal transformer, a full wave bridge rectifier, and some casework, which you could paint black. :)
The attached schematic shows the design. You need to observe capacitor polarity, the output voltage is set via relationship of the LM338's reference voltage and a resistive divider
Its data sheet is here: http://www.ti.com/lit/ds/symlink/lm338.pdf

[TonyRoma]

Hi Tony

You could build to your exact requirements. A LM338 is a voltage regulator capable of 5 amps output and you can set its exact voltage,

I have done the maths for you, you will need 1x 220 ohm resistor, 1x 1800 ohm resistor a 100 ohm resistor
also 1x 10 uf capacitor and 2x 1000uf 3 capacitors @ 25v

You will need a incoming supply and suggested is a 20VA fused toroidal transformer, a full wave bridge rectifier, and some casework, which you could paint black. :)
The attached schematic shows the design. You need to observe capacitor polarity, the output voltage is set via relationship of the LM338's reference voltage and a resistive divider
Its data sheet is here: http://www.ti.com/lit/ds/symlink/lm338.pdf

Hi Chris, thanks for this info but this looks way above my skill level. :)

[lilolee]

If you search for 13.8v regulated on ebay you will find plenty. They usually have an adjustable resistor inside so that you can adjust the voltage to suit. I have something similar and it is variable from 0 to 19v at 3a, very useful. They are used in ham radio systems if you wonder.
https://images.shopwired.co.uk/images/user/fileUp/radioworld2/W-3A_01.jpg

[matt2007]

This one looks good for £200 but the owner does not know much current it can supply - maybe someone on AoS knows?

https://www.pinkfishmedia.net/forum/threads/allnic-ht-2500-power-supply.239669/

[Firebottle]

That doesn't look like a 12V power supply. It is a high voltage supply that has been repurposed to tap off the 12V I guess was originally the valve heater supply.

12V current capability 1/2A maybe.

[Alfonzo]

Hi, as per title looking for a power supply for my Pathos Aurium Headphone amp
rated at 12v/5amp preferably in black. Many thanks. Tony.

Try Nick from Long Dog Audio - he sorted me with 2 LPS for my Auralic Aries mini and Chord Qutest Dac. They made a noticeable improvement in both cases also and he's a gent to deal with.

[TonyRoma]

Thanks for the suggestions, some things to look at.