Dave Plowman (News) wrote:

Anyone know of the simplest way to provide phantom power (the usual 48v)
to a mic amp that currently doesn't have it?
Obviously, an external plug in supply is one way, but wondered if there
was an IC or whatever that would produce it from the mic amp's existing
PS, which is a discrete +/-15v type.



** Get a 1W isolated, DC/DC converter module - Farnell sell them.

You need one rated at 15V input with 15-0-15V output. Simply stack
the output on top of the +15 volt input and you have 45 to 48 V DC.

I have done this several times and it works a treat.



..... Phil