ProtoDAC TDA1387 X8 project

[OnkelPH]

Since the LM317 are cheap and easy to get a fixed 5v, that’s the first I’ll try. I also have a second one that I’m going to try, jung super power design I found on Ali. But I’m still open for suggestions and ideas. I still learning about this and are enjoying the process. I also got some second hand electrolytes that I going to test. Muse, Jovial, Audio Note Kaisei og Cerafine, looking forward to that.

I ordered a lm317/lm337.  Is that going to work, or do I need a plain lm317?

Also, I have a bunch of old laptop PS laying around.  That should work to feed the lm317/lm337, shouldn't it?

Please forgive the noob questions, still learning.

Thanks!

I’m still learning to and regarding the LM314 I’m copying Gabsters approach. As for 3.3v you’ll need 9v PS, it will probably be okay for 5v output as well. 

Do anyone know how much current the ProtoDAC draws? A single 1387 draws 6.5mA I guess?!?