Should I instead look at something like this to supply power to this circuit? (looks like a simple rectifier then splits the dc with a lm7912 and 7812)

Two things. First, that is a regulator only, not a complete power supply. So you still need a low voltage AC or *two* DC sources. Second, it takes *two* DC sources to operate.

ak

 

Yep, no worries. I was planning to put it through a 12v ac powersupply.
I think I will just buy that thing as it is only a few dollars and see how it goes.
Thanks!

 

Please be aware hat in the "bar" mode, and because you are using a +12v supply for the LEDs, the ICs may over-dissipate.
There are two ways around his:
-One is to deliberately set up the IC with a low LED current.
Since the schematic has no values, we can only guess what he LED current has been set up to.
-The second way is to add a 470 ohm resistor in series with each LED.

 

Please be aware hat in the "bar" mode, and because you are using a +12v supply for the LEDs, the ICs may over-dissipate.
There are two ways around his:
-One is to deliberately set up the IC with a low LED current.
Since the schematic has no values, we can only guess what he LED current has been set up to.
-The second way is to add a 470 ohm resistor in series with each LED.

Ah OK, thank you for this information.
I am using some small old style rectangular LED s which seem to be fairly low current. I will have to check and keep your suggestions in mind