Some things you need to know netBEUI:
If your Mac only reports 1024 RAM, then the board only has 512K on it,
combined with the 512K on your board to total 1024K. Notice there are
three rows for RAM? I suspect it can be configured for 512K, 1MB, &
1.5MB. Or 1-2MB total when combined with the Mac's
Really!? I have been looking for a SCSI solution for 64K ROMs for
years. I know the Dr. Dobbs published an article by John Bass on how
to build your own SCSI adapter for the Macintosh in September 1985. It
required custom drivers for each drive it was to access. Since there
were no standardized dri
Dear all,
It has been a while since the show. Well, the show photos (320
pictures) are online since November 2009 but in good old Sinclair
manner it took longer than estimated to complete the aftershow-
webpage. ;-) But it’s ready now. Highlight of the recent QLvsJAGUAR
website update is the QL-Ma
On 4/9/10 11:40 AM, Mac128 wrote:
The RAM doesn't require 128K ROMs. But the Mac Snap SCSI card DOES. It
did not come out before the Plus, it came out after.
That one might not have but at least one 512K SCSI add on came out
before. And IIRC it used the old trick of partitioning the HD into a
On 4/9/10 12:17 PM, Wolf wrote:
i saw somewhere a reference to a composite video out circuit for use on
a Mac 128k motherboard. it was a desktop hack that also had the machine
running from an Apple IIgs power supply. i wouldn't think the video
signals coming from the logic board would have change
i saw somewhere a reference to a composite video out circuit for use on a
Mac 128k motherboard. it was a desktop hack that also had the machine
running from an Apple IIgs power supply. i wouldn't think the video signals
coming from the logic board would have changed much from the 128k to the SE
but
Yes. Dead ones do it all the time. But how would you know what you're
doing?
On Apr 8, 5:26 pm, Alex Barnes wrote:
> Is it possible to run a Macintosh SE FDHD without the internal CRT
> connected?
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Yes, it is most likely a MiniMux board required to decode more than
128K RAM. This confirms that your 128K board has been upgraded to a
512K which was a requirement of the Dove board. Therefore you may have
1.5MB RAM, not sure how the Dove board handles it.
In a straight 512K board upgrade the Min
The RAM doesn't require 128K ROMs. But the Mac Snap SCSI card DOES. It
did not come out before the Plus, it came out after.
On Apr 8, 10:04 am, PM7500 wrote:
> The Dove for the 128k/512k was out before the Plus so how could it
> require the 128k ROM?
>
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