Video connectors (was: CGA Modes (Wuz: Win 3.0))

From: Ward Donald Griffiths III <>
Date: Wed Feb 4 18:43:37 1998

Tony Duell wrote:
> > Especially from the experience of the AT&T (Olivetti) 6300 video
> > interface using what looked liked a standard DB-25, but with one
> > line carrying 70vdc to power the monitor. A guy with a standard
> Are you sure about that 70V? I've repaired Olivetti M24 PSUs (what we
> call the AT&T6300), and there's only the +5V and +/-12V outputs. Now, 12V
> is present on the monitor connector, and it would certainly kill a
> Centronics interface, but I doubt very much if there's anything higher there.

Well, that's what my hardware guy at the store said back when we got
the news, back when I was still doing retail software support. I'll
admit that I've never measured it myself nor owned one -- my AT&Ts
are all 7300/3B1 series. If he told me wrong or made a mistake, it
wouldn't be unique in my experience. I did see the CPU and printer
in the store -- it looked like all of the magic smoke had escaped
from both units.
Ward Griffiths
Dylan:  How many years must some people exist, 
			before they're allowed to be free?
WDG3rd:  If they "must" exist until they're "allowed",
			they'll never be free.
Received on Wed Feb 04 1998 - 18:43:37 GMT

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