I put this together on a breadboard some time ago and have found it useful for when I need a second voltage source. The stepdown transformer is a Triad F-25X 120/12/6 1.5A that is plugged into a ground fault interrupter wall wart and 1A fused on the secondary. Since the regulator has been of use I want to put it on a permanent circuit board. Before I do any comments or corrections?