I'm restoring an IMS - L/F Technologies S-100 Bus computer.? I've got all the pieces except for the Operating System.? I'm hoping that someone here may have a disk stashed away.? From the literature I have read, I would need TurboDOS version 1.40a or 1.41c from IMS or L/F Technologies.? I've seen TurboDOS 1.3 versions out in the wild from IMS, but the 1.4 version was greatly enhanced and offered better compatibility with my specific hardware.? I'd be much obliged if anyone can help.
new_castle_j at yahoo
I recently acquired a VAXmate with an LK250 keyboard. The problem is the
keyboard came without the cable. It uses an 8-pin SDL connector and the
usual tiny MMJ-like connector at the keyboard end. I don't know the pinout
and I don't have the necessary crimping tools, is there any source for such
Hi all --
I have an R80 drive in my VAX-11/730 cabinet that I'm trying to get
running. Symptoms are: most of the time when the Run/Load switch is
depressed, the drive will begin spinning up for 1-2 seconds (sometimes as
long as 3-4 seconds) and then stop, faulting with error code 01 ("Spindle
Timeout Error"). Every now and again it will spin up and go ready -- the
other night it ran for several hours, long enough for me to get a dump of
the disk with no read errors (*).
I've checked the usual -- the motor and the spindle spin freely and the
belt is good and tight. Connectors have been cleaned and reseated, as have
socketed ICs. Power supply voltages are OK. The motor start cap tests
fine. I'm getting pulses from the optical spindle sensor. I suspected
that the brake might have been slowing things down during spin-up as it was
a bit noisy (due to some light corrosion), but the spin-up error persists
even with it entirely removed.
I haven't been able to find the actual service manual for the R80 (or the
very closely related RA80 and RM80 drives). Anyone have a copy stashed
somewhere? Anyone have any debugging advice?
Thanks as always,
(*) The drive contained a 4.3BSD system used to run a bbs and uucp relay,
"Darkstar 730" out of Beaverton, OR. Looks like it was last run in the
early 1990s. Now I just need to track down the owner :).
my daughter is well aware of my affinity for old computers and software, and, as usual, she pointed out that there?s an XKCD for that:
I found this remarkably accurate.
> ---------- Forwarded message ----------
> From: "Ethan O'Toole" <ethan at 757.org>
> To: Murray McCullough <c.murray.mccullough at gmail.com>, "General
> Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
> Date: Mon, 28 Oct 2019 11:11:49 -0400 (EDT)
> Subject: Re: Coleco & Atari
> > old? 1983. Coleco ADAM, my favourite, and Atari 600XL, not so much. I
> > have my ADAM. No not why. But isn?t this why we all belong to
> classiccomp. And
> > $600. How quaint! BTW(sorry), it had an update on CP/M called CP/M Plus.
> > Gosh, I miss those old days.
> Oh man, the Atari 8bit is second to the Adam? IIRC the 800XL and Floppy
> Drive cost less than the Coleco Adam kit. You didn't get a daisy wheel
> printer, but you got better sound and a much larger library.
> I grew up on the ColecoVision, neighbor had the Atari 5200. I used to say
> the ColecoVision was better when younger but now I have to say I think the
> Atari 5200 is better.
> Have yet to own an Adam, but I always thought of the Adam as something of
> a failure? There was a large number of them that shipped DOA or close to
> DOA as well due to power supply issue (in the printer) ?
The ADAM was a well-designed system with a great set of launch software
hobbled by a rollout/gamble for the Christmas buying season that didn't pay
off. If they had a proper release to work out the manufacturing issues they
would have been a lot more successful I think. Nevertheless, any system in
the wild you come across should work just as well as any other vintage
machine by this time. It's my favorite machine pre-Amiga/ST/IIgs/Mac.