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From: TLC (all posts)
Date: 1999-07-15
Subject: Re: Plus/4 motherboard reproduction
Hello!

> has anyone thought about reproducing the plus/4 motherboard. I ask because
> all of the parts on the motherboard except for the PLA, TED, 6529B and 8501
> are readily available - infact they will all be available through my web
> site soon - and the roms can be easily reproduced. As for the other four
> chips they can be easily extracted from a C16.

It's hard. Both the designing and manufacturing part. About few weeks for the first for an experienced person, and for the latter a professional manufacturer.

Not to mention that you listed unavailable the most serious chips (proc,
ted and pla). The 8501 processor itselves is the worst Commodore chip part which I've ever met anyway - when I open an old (non working)
Plus/4 or C16 it's 99% that I meet a bad 8501R1 (xx84). Replacement 8501
chips (manufactured in 88 or later) seem to be stable, though.

L.

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