Need more info...

Dear Tom,

Um, unsure of the config, but IIRC KATO switches use polarised magnets.

As a result, apply " +   - " polarity DC to the 2 (TWO) wires coming from the turnout,
and the turnouts throw one way (let's say, Left),

apply " -   + " polarity and they throw the other (let's say, Right).

Now, I'm not sure if the KATO switches do the polarity reversing required,
or if they are doing some other funky thing to make the turnouts work.
However, until you know for sure how the switches work, changing the PSU feeding them is unlikely to be a good idea.

I know some modellers use an AC supply, and use a toggle switch to insert a Sillicon Diode (1N4xxx) into circuit. This cuts-off the "unwanted half" of the sine wave, and thus provides the desired "polarity DC" to the turnout to throw it.

In short, the 3 ways to appoach are:

- use a DC supply,
run DC supply to DPDT toggles
run 2-wire outputs from each switch to the turnouts

- use the KATO supply and switches, directly to the turnouts
(Plug n Play, no brainer)

- use an AC supply
run AC to a SPDT toggle
add 2x Sillicon diodes in opposing directions to "half wave recitify" the AC source
and run the result from each toggle to the turnout

I hope this helps....

Happy Modelling,
Aim to Improve,
Prof Klyzlr

Unitrack switches

Thanks for the info Prof but I will do the no brainer thing plug n play - seems the easiest for an old fella like me.            Tom