I recently won an auction described as a "Science Fair Junior
Electronic Lab 10 in 1"... the picture showed a couple of
blue grid boards which were, AFAIK, not part of a 10-in-1
It turns out that in addition to the 10-in-1, there was
an entire (and a partial) "Science Fair Junior Project
Board Kit" (cat no. 28-153) - one manual, two plug boards,
one IC board (14-pin socket + 14 springs) plus a double
handful of mixed loose components.
The components are somewhat interesting from a historical
perspective - there are several flavors of transistor sockets,
several segmented LED displays (some on PCBs as from an LED
calculator, some in DIP form), mercury switches, reed switches,
and a bag of resistors with a "King Kits" card from Poly Paks.
I'm curious if there's a repository of ancient Radio Shack kit
manuals out there - I did not get a manual for the 10-in-1
(cat no. 28-225), but at least I got its box (covered in packing
The New Yahoo! Search - Faster. Easier. Bingo
Went to a surplus store today and found a package that said that it was
"MOS Operating System" and that it was a multi-user system and that it was
MS-DOS compatible. Does anyone know anything about it? I've never heard of
it before. The package was sealed so I couldn't open it to read any details.
not sure if it's on-topic here, but anyway...
i have an ISA board marked 'Sanyo LAT-200A'. it contains
amd286 cpu, couple of headland chips, four SIMM sockets,
and two (even/odd) empty bios sockets. does anybody know
what it is, where to find bios images and how to use it?
Well, I seem to have gotten my power supply straightened out. It wasn't
the switch after all, but the power supply itself. A different problem
has now manifested itself.
On power on I am getting this on the console:
M8190 Clock Error
It then spits out the contents of various registers and asks if I want
to run the test again.
I couldn't find this particular error via the normal search engines.
Does any have any ideas as to what the problem may be and how to correct
Christopher McNabb <cmcnabb(a)4mcnabb.net>
The McNabb Family
>If I were you,I would specificy the reel diameter and the certified
>density. The tape I'm looking at at this instant, says on the label "3M
>Scotch 777 6250 bpi", so in this case I would say "7 inch reel, 6250 bpi"
I just pulled one out, and I rather assume all are the same.
This one says Endura 800 BPI to 6250 CPI BASF
It has an inner diameter of about 3.5" and an outer of about 7"
A quick look on ebay last night turned up some disappointing results. It
seems a bunch of 9 track reel tapes failed to sell in the last 30 days.
Maybe I'll try them on the Vintage list instead.
At my favorite salvage spot near Rochester the other day I noticed a Bruker
rack with an ASPECT 3000 mini, two 8" floppy drives (FDD 280) and a hard
drive (BDS 160). Lots of cables as well.
It appears from Google that this would mostly be used for NMR Spectroscopy,
but if anyone is interested, I expect its available for a quite reasonable
price as long as you speak up quickly.
Get back to me off-list if you want me to call them to save it.
OK, so I just got bombed with requests for the Digital Group
stuff. Which reminds me... what is/was so special about that
company (from Colorado, I believe) or their systems?
I used to have the whole nine yards of their stuff... about,
oh, 8 or 10 2cuFt boxes or so. The only thing I liked in the
system was that funky tape drive system... Phideck or something
like that. Threw it all away (...) when I moved to the U.S. in
'93, and had no more space in the shipping container :)
These docs were strange leftovers from that.. must have forgotten
to pack them at the time.
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://www.pdp11.nl/VAXlab/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA
Sorry - I wasn't paying too much attention to this thread, but I have
the manual for the Hayes S100 modem (80-103A) which includes a short
modem control program written in 1977 by Dale Heatherington (the
co-founder of DC Hayes; guess who was the marketing guy and who was the
engineer!). Control was by bit-setting a couple of control bytes to
handle bit (baud) rate (high/low - typically 300/110 bps, but low rate
could also be set to 75 or 134.5 bps). Other bits set transmit enable
(on/off), mode select (answer/originate), break, self-test, ring
indicator, and off hook.
The manual includes a chapter on "Applications". Section 5.5
Telecommuting is reproduced here: "The energy situation being what it
is, more and more people are seriously considering alternatives to
commuting. If your job consists mostly of slaving over a hot computer
terminal, the 80-103A may offer an economical way for your job to come
to you instead of the other way around. Of course you would want to make
an occasional trip to the office for meetings, but think how much pain
and energy you could save. You might even be able to move to that
beautiful valley 'way up there in the mountains..."
Of course the hot setup was the PMMI modem which could be overclocked to
450 baud, but Don Brown died in the late '70s (?) and the company
But what the world was really waiting for was a good 1200 baud modem...