I came to a decision about the testing. I would do it in steps.
I touched the power supply to get a feel for its temperature. It felt a little warmer than body temperature, my guess would be 99 to 100 degrees F.
I planned to make the first run about ten minutes. With my first test of ten loops it took roughly 2:17 to complete. I multiplied this by five, ran it and got distracted and forgot to check on it for about an hour. It should have taken a little less than 11 1/2 minutes.
I touched the brick again and didn’t notice a difference.
The next test would be longer, instead of doing the ten loops five times, I did them thirty times for an estimated 68 1/2 minutes. This time I set an alarm and checked the temperature by touching the brick every twenty minutes or so.
When the run was done, I could not notice a temperature difference by touching the brick. I also touched the diskette drive cases and the Apple //c case to see if there was any noticeable heat. They were cooler than the brick.
It was not very scientific, but after this test I would be comfortable with buying or selling this brick power supply. I suspect this is more action than most Apple //c’s get in general. I know mine hasn’t had a workout like this in a while.
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