I'd love to have the Ultrasonic show - especially in a lossless format. Any chance of a link?
I think the 75 shows has pretty much the same setlist, so it's hard to tell which one you have there.
Here's the KBFH broadcast ripped from the original CD which was re-released for broadcast around 1990 - with ads & fades edited out:
http://www.megaupload.com/?d=G8U0MUA5
http://www.megaupload.com/?d=5VWIPOW2
http://www.megaupload.com/?d=UXUNEVTA