So now that I have a program to access the diskettes and draw a little power, what next?
How do I measure the results? Do I run it for a period of time and if the power supply survives, it’s good? If I do it that what way, what is a good amount of time? An hour? Two hours? Eight hours?
Another option would be to check the temperature of the power supply. Checking the Apple //c Technical Reference Manual, reveals only the input and output power of the power supply. It doesn’t say anything about operating temperatures for the power supply.
The one I have connected to my Apple //c has been up and running for a couple of days now and is cool to the touch. I ran the exerciser program twice in that time, once to see if it worked and once to time it.

I know my brick doesnt get warm at all, they are faily dumb devices with plenty of headroom … as long as the capacitors in the nicely sealed unit dont crap out
My bricks don’t give off a lot of heat. They just feel warmer than my skin.
yea thats about what I experience