Re: Differences between 8501R1 and 8501R4

From: Francesco Messineo <*francesco.messineo_at_gmail.com*> Date: Mon, 9 Dec 2019 21:32:08 +0100 Message-ID: <CAESs-_wnMtPE1iPA5jEGW06eJhSBjMjk8pfhDe6Cvb=CDuyfHg_at_mail.gmail.com> · francesco.messineo_at_gmail.com

On Thu, Dec 5, 2019 at 12:18 PM Anders Carlsson <anders.carlsson_at_sfks.se> wrote:
>
> Gerrit Heitsch wrote:
>
> > 2) The 8501R4 came out in 1986, after the 264 series already ended. I
> > wonder why Commodore made a new revision.
>

>
> Is the R4 more reliable than previous revisions, which would explain why
> they kept revising it (at low cost, hopefully) as part of getting the
> remaining stock on market instead of writing it off as losses?

I hope it was more reliable. I have a few  dead 8501R1 in my
MOS-dead-chips collection and I've never seen the R4 in real life.
I'm glad the 8500 wasn't as bad as the 8501R1 at surviving.

Frank