This thread has some good, solid information and very little bravado.
Special Mention to:
For their interesting contributions.
IMHO, There are several ways to make an adequate Power supply. And several ways to totally botch the job.
In the 1980's, I was totally against using solid state in a tube preamp. However, this was more about not using low voltage devices in high voltage circuits than anything else.
Now that high voltage transistors are available this is not a major consideration.
My first tube amp is going to be a platform to play with some of the discussions.
I want to try unregulated and regulated power supplies. I will probably start out with unregulated choke input supplies.