I know about The Brick, Orca Edge, ' cause a buddy of mine still dives his, but I didn't know they were in the analog dive computer business before that. Was it as effective as the ScubaPro?
The Orca Edge (if I recall correctly) dates to the mid to late 80's. I don't believe there was any connection between the Orca Edge and Farallon, but I don't really know.
The Farallon was around in the mid to early 70's. AFAIK, It was supposed to be an analog type device using similar principles to the Bend-O-Matic, but it had multiple tissues/ compartments. They did not work well or maybe worked at all.
We had them for sale at Divers Service Center (in PR) and I remember that they were recalled. I vaguely remember that they might have come back and they were recalled a second time. My memory is a bit fussy about that.
Here are some pictures that of these units that I found on the web in the past. I can't remember were the pictures came from. I don't know JK.