3 Isolated AC Outputs from 1 AC Source

Hello Everyone,

First let me say thank you for taking your time to read and possibly
respond to my post.

I'm a (very) amatuer electronics designer. Mostly I design things that
I use around the house (The Official term, I believe, is gadgets). My
current need is as follows...

I have a single power supply creating between 0 and 90V AC (Adjustable
in roughly 1V increments). I need to 'split' this current source into
THREE completely isolated AC Power Sources which are of equal voltage
to the input current (1:1).

My thought is three simple transformers with 1:1 windings. All the
primary sides connected to the 0-90V Supply which would give me 3
isolated 0-90V Secondaries.

I only need about 20mA on each of the three outputs... 25 MAX.

So, My two questions...
1. Is this an appropriate solution to my problem?
and
2. Can anyone reccomend a small transformer (PCB Mount) that could
handle the task? I've searched a bit on Digi-Key and Mouser, but
frankly, I'm not even exactly sure what I'm looking for so its' a bit
hard to find.

Thank You for your time!
Jeff

.

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