Date/serial of Voyager switch to single rigid PCB?

[brouhaha]

(11-10-2022 11:52 PM)Steve Simpkin Wrote:  Eric already heard this but for reference, Bob Prosperi and Charles McCord estimated that the changeover occur sometime in 1982. Any units made in 1983 or later should be the single PCB versions. See the link below.

Watching that again is interesting, and I didn't catch it when I was present, but I think Bob's answer is about the change to single-PCB (which is what I'm asking about in this thread), and that the change to SST (single chip) was some years later. I have multiple 1984 and 1985 Voyagers that are single-PCB but not SST. An Chuck pointed out, the SST chip is covered by the Smiconductor Chip Protection Act (SCPA), which puts the earliest possible date for SST chips near the end of 1984. Because of the need for a second tapeout, and all of the verification Chuck talks about, it's unlikely that SST Voyagers hit the market before late 1985. The earliest SST Voyager I've got is 1988, but I don't have any 1986 or 1987 Voyagers to check.