Playing catch up...
The last two swap meets I have gone to yielded this Atlas 350XL and yesterday the Atlas 350PS
The Atlas 350XL needs some work, low RX sens, and very little TX power out. This is good news because what is most likely wrong is common to both RX and TX, that means the 200W PA is good. The 350XL is clean inside but missing one shield. (I'll worry about that later).
The power supply was cheap enough, and was clean on the outside, the inside looks like it was store in a chicken coop...
This pair is a project for next year, there is already too many projects in the cue for this year... Another HP-8569, A Tek 2440, and my Motorola Micom 2ET HF radio.