Adjustable bipolar supply with 48v?

[therecordingart]

I've been searching, but not finding what I'm looking for. I'm building a rack of mic pres and want to build a bipolar supply that also has a 48v rail for phantom power. I know there are some "off the shelf" solutions, but I won't to go the DIY route on this one.

Any good starting points? I know I can read the LM337/LM317 data sheets for one part of this, but I'm stuck on the 48v part.

 

[shabtek]

What are the current requirements?

 

[shabtek]

What are the current requirements?
I have copied  from the g9 power supply a few times with success
The 51x is pretty bulletproof too

 

[therecordingart]

What are the current requirements?
I have copied  from the g9 power supply a few times with success
The 51x is pretty bulletproof too

Shoot...I don't have an exact number on the current requirements yet. I imagine a half amp would be plenty. This is for 4 INA217 based pres. I'll take a look at the G9 supply and the 51x supply. Thank you!

 

[Brian Roth]

One of the groupDIY members sells this:

http://diypartssupply.com/index.php?main_page=product_info&cPath=2&products_id=34

There are also these choices:

http://www.fivefishaudio.com/diy/psu2448/

http://www.jlmaudio.com/shop/ac/dc-kit.html


Bri

 

[Rocinante]

On the cheap Hairball Audio and PCBGrinder both sell simple bipolar and +48 power supply pcbs.