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H
Hugo Holden
replied to the thread
Brightness not uniform - Apple //c momo CRT monitor
.
That is a good question. There are many digital models now. So you will get a lot of recommendations. If you are starting out though...
1 minute ago
O
offensive_Jerk
reacted to
Hak Foo's post
in the thread
Is it possible to replace cassette basic with dos or cpm?
with
Like
.
I did some experimentation with this recently; added a 2K option ROM (the smallest BIOSes will actually handle sanely) that just mapped...
4 minutes ago
O
offensive_Jerk
reacted to
krebizfan's post
in the thread
Is it possible to replace cassette basic with dos or cpm?
with
Like
.
The one ROM expansion I remembered didn't replace the CBASIC but instead uses the spare ROM socket...
6 minutes ago
modem7
replied to the thread
Project to create an ATX 80286 mainboard based on the IBM 5170
.
For when I have a 5160/5170 motherboard, with only video card, out on the table, I made what is pictured at [here]. Via large alligator...
13 minutes ago
bolex
replied to the thread
DECMate II Archive Project
.
I added all the remaining scanned documents and disk images to archive.org. It's a bit messy, but I'll go back in and edit the...
16 minutes ago
A
atariquest
replied to the thread
Fit a printer to a vintage Varian Spectraa 10 plus Atomic absorption spectrophotometer
.
My first IT job out of college was working in a hospital. One of the things I had to do often was interface labratory equipement via...
23 minutes ago
modem7
replied to the thread
Project to create an ATX 80286 mainboard based on the IBM 5170
.
Yes, the circuit diagram and BIOS source code refers to it as 'Port B'. U127 used for outputs. (Port B write.) U128 used for inputs...
40 minutes ago
I
i2b4knight
replied to the thread
Mid Atlantic
Looking for manuals (or scans or photos) for Graymark Microprocessor trainer
.
I just home & checked tracking its shows that the delivery was changed to tomorrow. So I'll talk to you tomorrow Scott B.
50 minutes ago
modem7
replied to the thread
Project to create an ATX 80286 mainboard based on the IBM 5170
.
The NMI is enabled/disabled by the XD7 (bit 7 on the external data bus) and 'NMI CS' coming into U118.
55 minutes ago
modem7
replied to the thread
Project to create an ATX 80286 mainboard based on the IBM 5170
.
Complicating the matter, with the background RAM refresh mechanism either faulty or disabled, the cells in a row of a RAM chip still get...
Today at 3:53 AM
A
atariquest
replied to the thread
1541 for the C64? Any differences, versions, other things I should look for?
.
The Pi1541 is a PCB that connects to a Raspberry Pi3 (multiple versions) via the expansion header. Instead of running an operating...
Today at 3:50 AM
SteveHere
reacted to
snclucas's post
in the thread
My collection of vintage computers
with
Like
.
I have just come into custody of some alpha stations and have no idea how to get them booting :) will be fun to figure it out I supoose
Today at 3:37 AM
modem7
replied to the thread
Unidentified Turbo XT Clone has F/C stuck low
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Is the 'Checking interrupt IRQ0' test in Ruud's Diagnostic ROM (RDR) version 3.9 still failing ? I ended up comparing the source code...
Today at 3:35 AM
H
Hak Foo
replied to the thread
Is it possible to replace cassette basic with dos or cpm?
.
I did some experimentation with this recently; added a 2K option ROM (the smallest BIOSes will actually handle sanely) that just mapped...
Today at 3:29 AM
SteveHere
reacted to
jtan2000's post
in the thread
Booting to IBM logo
with
Like
.
Thank you @GloriousCow and everyone who help me in this thread. I realized I download ibmlogo.ans incorrectly and got the right one.
Today at 3:22 AM
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