need +/- 12V and +5V to power a DAC: Can I tap into the +12V "section" to get the +5V?

as above.

I'm thinking of getting sourcing the Vin for the the voltage regulator (example: 7805 or something more recent) on the first cap after the diodes or at the +12V terminal.

thoughts?

some info:
  • +/-12V is for the analog section
  • +5V is for the digital section