powering up older machines - is it safe?
snhirsch at gmail.com
Wed Jun 4 06:22:23 CDT 2008
On Tue, 3 Jun 2008, Allison wrote:
>> Do you recall anything about the semi-mythical Corvus interface for the
>> VT180? It's mentioned in the Corvus technical literature, but I've never
>> talked to anyone that's actually seen it in the wild. I'm curious if it
>> ever actually existed.
> Nothing mythical. There was a version of the corvus interface that
> was a board that went under the Z80 and therefor allowed most any
> Z80 system to accept the corvus hardware. It wasn't however sold as
> a uniquely Robin thing.
Hmm. Definitely referred to as the VT180 interface in the Corvus book,
but perhaps that was more of a statement about the software?
If anyone has one of these, I am very interested in owning it.
> FYI the Robin does not have any for of external bus. If you want
> access to the bus you have to jack up the Z80 and grab it there.
Corvus took other routes as well. The interface for Xerox 820 connects to
a pair of what appear to be parallel IO ports on the motherboard. Given
the limited transfer rate, it certainly did not need to be sitting on the
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