Power for Circuitron switch machines

I used two small HO transformers that I picked up from a trais show for about $2 each.  On an older layout I built in the mid nineties, they are still working flawlessly.

Happy railroading,

Don

I use this:  https://www.amazon.com/MEAN-WE...F%2BO5021pAnSA%3D%3D

The Meanwell LRS-150-12 is a UL listed, reliable, commercially built and tested switching 12VDC power supply.  Don't mess around with old computer power supplies or other hacks.  Safety first.

George

I used to use a RMC HO transformer.

You really should share your "wiring schematic" for how you have the switch machines wired.     I assume you're referring to the Circuitron Tortoise switch machines ?   I have about 12 of them on my layout

I only need one 12 VDC power supply, then achieve the reversing of polarity with a DPDT  On-On switch.   Along with that I purchased multicolor Panel LED's that go from Red - Green.   No Off Position to keep the panel LED lit

Throwing the switch "reverses" the polarity to the Tortoise machine, the power supply is simply 12 VDC, with two taps +12 VDC and Ground ?

I have run them for 35 years on a single DC power supply. I just looked back at the instructions and see your dilemma. In order to go to a single power supply. You would need to change out all the toggle switches as well as the wiring. . Quite a bit of work.
This is off the Circuitron site. Seems pretty straightforward and no mention of anything special as far as power supplies.

I wired mine using the AC technique.  Your writing could be easily adapted to it with not much change.  I used the low voltage accessory ac output of my Z4000 and wired it through a couple of 1n4006 diodes to get the equivalent of your +/- 12v.  The instructions and schematic are in the tortoise instructions.  But that power supply from Amazon looks pretty slick too.

Dave C.: Thats exactly how  I have mine wired.

Since I posted my question, I have found a solution on the internet. Should have looked there first. Swear you can find anything there.

I have 16 tortoise switch machines and have been using a Pyramid PS-52kx power supply that I have. It does 12-15 volts dc. They can be found on ebay for around $100 and will easily handle what you need and then some.