Yeah that's 1 I've been looking at, I also have a great trans. and heatsink from a home stereo amp, but really it's a lot higher voltage than I can handle heat wise for now. But I want to use my transformers in a modular sense. In fact, I should put 2-3 trans. all in 1 box, under the bench, and have all the IP/OP and switches/fuzes in that 1 box, then attach what ever PSU I want to what ever taps. That's half the hold up on my PSU, is worrying about what winding's/combo's to use. Another 1/2 would be trying to make it from what I have on hand (which is enough tho)
For now I'm going for anything 15-30V range, 1-2A type design's, and with the present heatsink from the stereo, I was looking at only 20W that I was comfortable with from the TO-220 pass transistors I have.
I did start making a dual LM723 design on the breadboard, then realized I must have fried 1 LM723 years ago. And I was too cheap to buy another 1. So I was modeling using the 1st LM723 reference for a block diagram model of the other 1, but LTSpice can be a pain, and then I went to other designs.....and learning more.
I spend the last 2 days load test my various trans, I have 2 that be great for 15-20V 1A stuff, and 1 that should be fine for 30V.