On 4/11/22 11:56 AM, Bill Gunshannon via cctalk wrote:
Here's one for whatever TRS-80 gurus still hang out.
The Mode 4 had 64K RAM and pretended to be a Model III by loading
an image of the Model III Rom and then running it. Would it be at
all possible to do the same thing with an image from t
On 4/11/22 1:33 PM, Bill Gunshannon via cctalk wrote:
On 4/11/22 14:09, Eric Dittman via cctalk wrote:
On 4/11/22 11:56 AM, Bill Gunshannon via cctalk wrote:
Here's one for whatever TRS-80 gurus still hang out.
The Mode 4 had 64K RAM and pretended to be a Model III by loading
an image o
On 4/12/22 6:37 AM, Bill Gunshannon via cctalk wrote:
So, this just gets more and more confusing. (Have I really been away
from all this for that long!!!)
I dug up the tech manuals for the two of them (buried deep in my
stacks of books) and compared them. And you are, of course, right.
Which j
Speaking of the VT180, I have one but am missing the disk drives and
cable. Does any have a spare they'd like to sell?
--
Eric Dittman
On 8/30/23 6:24 PM, Fred Cisin via cctalk wrote:
Hence the short text lines on "home" computers.
The TRS80 used an RCA TV, converted into a monitor. (presumably bulk
purchased before the tuner was installed).
OB_irrelevant: In the TV sitcom "Married With Children" in many seasons,
on the B
On 7/18/2019 12:26 AM, Zane Healy via cctalk wrote:
On a related note, was there ever a copy of dBase III or dBase IV for VAX/VMS?
I know there was a version of Lotus 1-2-3.
I don't know about the earlier versions but I have a copy of dBase IV
for VAX/VMS that's still in the shrink-wrap.
--
E
I pulled my Pro380 out of storage after getting a replacement
VR201 monitor. I connected it all together and on powerup I
get the following display:
http://www.dittman.net/pro380/screen.jpg
The tech manual says this is an error from slot 1 (the hard
drive controller) and the error is "Non-exist
On 7/23/2019 7:45 PM, Paul Koning wrote:
On Jul 19, 2019, at 10:52 PM, Eric Dittman via cctalk
wrote:
I pulled my Pro380 out of storage after getting a replacement
VR201 monitor. I connected it all together and on powerup I
get the following display:
http://www.dittman.net/pro380
I had the cover off one of the newer style Model 12/16B/6000 floppy
expansion units (nicknamed "The Toaster"). As my wife walked by one
of the Rifa caps blew and a fragment hit her shin. She was not
happy. Mostly from the flash and loud pop. It also scared the cat
that was sitting on a chair b
On 11/30/2019 8:34 PM, jim stephens via cctalk wrote:
On 11/30/2019 6:15 PM, Richard Cini via cctalk wrote:
The current P112 is a reissue from years ago, right? I
remember I had one — and I may still have it somewhere — but I only
used it with 3.5” drives. Somehow I think it was buil
On 12/13/19 8:42 PM, Chuck Guzis via cctalk wrote:
Believe it or not, the "flippy" was actually patented in 1974.
US3932895A
...and let's not forget the 3" CF2 diskettes--designed to be flippies
right fron the get-go.
BASF certainly marketed 5.25" flippies:
https://cdn.instructables.com/FWP/3
On 12/16/19 11:54 AM, Chuck Guzis via cctalk wrote:
On 12/16/19 9:02 AM, Eric Dittman via cctalk wrote:
I have two Aerocomp flippy drives. They have two index sensors and
two write protect sensors so the disk doesn't need to be punched. They
were in external cases with a system I bough
I have a VT525 that I couldn't turn off. I took it apart and there's
an adapter that connects the metal rod off the button on the front to
the power switch inside. The adapter has crumbled and it feels like
it was wax but it may have just been some plastic that has severely
deteriorated.
Before
On 10/17/20 10:14 PM, Richard Pope via cctalk wrote:
Hello all.
I have 22 S-100 boards for sale. There are two backplanes. One is a
9 slot bare board and the other is a 19 slot fully populated board. Both
boards have active termination. There are 8080, Z80, FDC, HDC, Serial,
68030, a Disp
On 5/7/21 5:07 PM, Zane Healy via cctalk wrote:
On May 7, 2021, at 12:53 PM, Cameron Kaiser via cctalk
wrote:
Back in the mid-90s, there was an outfit in Britain which made some
laptops using Alpha processors.
That was the Tadpole ALPHAbook. Not many of those got to the outside world.
Been
I'd be interested if shipping was a possibility.
On 5/17/21 2:40 PM, Eric Evans via cctalk wrote:
Classic Computer Collectors,
My name is Eric and I live in Baton Rouge, LA. A customer of mine recently
asked me to find a good home for his early 1980's Intertec Superbrain. He
told me that it wor
On 5/21/21 3:41 PM, Zane Healy via cctalk wrote:
Does anyone have experience using a SCSI2SD board to replace a Hard Drive on a
VAXstation or an AlphaStation? I’m thinking about using them on some of my
systems to reduce the amount of noise. I’ve gotten used to a quiet office. :-)
I've used
It's a virtual museum using eBay to display the exhibits.
On 6/17/21 9:48 AM, William Donzelli via cctalk wrote:
Approximately zero people ever thought this guy was a museum.
--
Will
On Thu, Jun 17, 2021 at 10:28 AM Chris Zach via cctalk
wrote:
Reason #1 why I am exceptionally loathe to don
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