13 Jul
2022
13 Jul
'22
12:02 a.m.
On Jul 12, 2022, at 3:48 PM, Chris Zach via cctalk
<cctalk(a)classiccmp.org> wrote:
The standard ones, yes, but the connector and address wires supported up to a MW per
board, perhaps even 2. It's mentioned in the Pro technical manual. I thought about
building such a beast, never did.
paul
Recently eBay seller smhelectronics261 posted a
very interesting prototype board: https://www.ebay.com/itm/295087630609
The description is "Dec Digital PRO 350/380 Professional Microvax II Proto 54-16707
Collectors", and the board art mentions "MICROVAX SOFTCARD."
Well, that is a weird concept. Maybe they were gunning to make the absolutely slowest Vax
system ever, the MV1 just wasn't enough of a challenge....
Does anyone know anything about this card?
Especially curious is the daughtercard connector: is it just for RAM expansion or is the
daughtercard necessary for card operation?
Daughtercard almost looks like a Pro memory board, but those were 16 bit and only 256kw
in size if I recall. That's can't be enough to do anything useful.