[Shaleradio]

I have the ability to pick up a cannibalized 41-220.  This model was a plug in but no transformer.  There's not much left of it, but I would pick it up if I can throw in a Bluetooth and run new speakers (The speaker is also gone).  The question for the group is this.  My supply would be 12VDC.  Can I use the on/off switch (which is still there) to switch on and off my 12 volt power supply?  Not sure if the old one which was originally connected to AC could do this?
Thanks,
Mark