I've just over 200 8inch floppy disks available for anyone interested.
They're work disks from a paper company from 1985. All disks appear to be in good
shape with no deterioration or mold that I can see from the random samples I
looked at. Most are IBM brand. There's also some system master disks for an
old XYCOM CP/M computer.
Pay for shipping and you can add any extra if they're worth anything to you.
Also got USCD p-system disks, Protem, some Micropro software with manuals
and some original digital research master disks. I might keep these for
bargaining purposes later.
I'm about to acquire an Apple //e with two DISK ]['s, a TS1000, and
I currently have a C64. I've got a tape drive for the c64 and i believe
ordinary tape decks work for the other two, also i've got floppy on
the c
and the apple. Now comes the sticky part...
Having/getting these systems, How am I going to transfer software to
them?!
Currently, I have a semi-broken (lever broke, have to use pliers to
close it)
5.25 pc drive, and possibly some 5.25 floppies if i dig around
These systems are fun to play with, but without any kind of software
other
then rom software, it's getting kind of boring... Really would love
to have
pointers to ways to transfer over software to them!
Gary Sparkes
KB3HAG - FM19tm
I seem to be running into a similar thing to what everyone else ran into,
namely that ftp.apple.asimov.net doesn't seem to be set up to enable easy
downloads of large #s of files. If anyone is still interested, i have ~100 MB of
apple.asimov, not sure how old it is (doesn't have any of the large uncategorized
directories). Possibly someone with more bandwidth could contact them about
becoming a "MailNet" mirror "server".
Scott Quinn
>
>Subject: Re: small valves
> From: Gordon JC Pearce <gordon at gjcp.net>
> Date: Sun, 22 May 2005 11:04:17 +0100
> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>
>Tony Duell wrote:
>>>On Mon, 2005-04-25 at 13:39 -0400, Allison wrote:
>>>
>>>>Good approach. I enjoy building and winding my own cores
>>>>be they EI iron or powered iron/ferrite types is part of
>>>>that.
>>>
>>>Are these cores suitable for use in making data memories? Ie. could one
>>
>>
>> I would hope not!. To make a core memory you need a magneitcally hard
>> material that will stay magnetised. But for a transformer or inductor,
>> you want a soft (magneticaly) material.
>>
>> -tony
>
>What about a small steel ring, or washer?
>
>Gordon.
You would need a large amount of curent, in amps possibly 10s of amps
for that. Volume of material counts. Oh, they would be very slow.
Allison
File name[24 characters] Index key [24 character part number] Printed page
number [8 characters] Optional PDF page number if different [8 characters]
I picked multiples of 8 for tabbing and it fits within 80 col.
--
The only thing I'd suggest is if you want to include the file name, put it
at the end, since filenames are pushing past 32 characters now as I put more
descriptive file names up.
<part number> <page number> <optional bookmark number> <optional filename>
This obviously generalizes to:
<keyword> <page number> <optional bookmark> <optional filename>
23 characters is probably adequate for <keyword>
<filename> probably should be a URL, but that runs into problems with
mirrors and all sorts of messy stuff when files move around in the
heirarchy (sometimes groups of files get pushed down into new directories
as more info on some topic shows up)
I found a couple more on the old cartridge drives from CDC. I don't
know if these are worth the effort to copy - the drives are long gone.
Any opinions?
--
If someone should turn up an old drive to recover data with, the more
docs that can
be found the better.
Cameron Kaiser asked:
>
> What does this run on, or is it a stand-alone unit?
>
>
It was an early stand alone floppy diagnostic. Ran on PC compatible
systems like the XT. We used it a lot to sort out and test Line
Integraton failures.
Billy
It was mentioned recently that App Notes are more useful than data
sheets. I agree and have been digging to find some.
Since there was a discussion on this earlier, I started with floppy data
notes. First two are from CDC and are for using the WD 1793 and NEC 765
chips to interface floppies. Includes a lot of wave shapes and notes on
the data separater and PLO. I loaned them to Al K. to scan and put up
on his site. He is pretty loaded down right now so give him plenty of
time to process.
I found the AMD bit slice App Notes but found someobdy had already put
them up on the internet. So into the eBay box they go.
I found a couple more on the old cartridge drives from CDC. I don't
know if these are worth the effort to copy - the drives are long gone.
Any opinions?
I also loaned him two of the Kludge Komputer Kompany articles from
Datamation. They showed up on this list recently too. And I'm certain
they will be enjoyed by those who haven't seen them before.
Billy
With so many things going on around the house, I was only able to
really do Friday of the Hamvention this year. Even so, it was a good
day, even if I wasn't able to find much of what I went shopping for.
Among my better buys were:
o A Verbatim 8" cleaning diskette with four 10-packs of moist
diskettes plus a 8" library case for $3.
o A Heathkit 5017-based clock with incandescent filament 7-segment
displays for $5.
o Enough laptop parts to build a spare for my daily-drive machine
(OT) for $30.
o Box of 10 Leviton designer X-10 wall switches for $40.
o Cisco 1900 managed 10BaseT hub for $8.
o Spare cell phone with batteries, charger, etc. for $5 (mine has a
design defect that requires repair/replacement of the phone from wire
damage at the hinge - on my 3rd body in 5 years).
o ISA card with large prototyping space bolted on for $3.
o P120 sub-notebook w/BSD to be used for GPS head w/Orinoco Gold
WiFi card for $40.
o Industrial GPS (bulkhead mount) with 2m lead to amplified antenna for $25.
o Tube of PIC 16C54s for $2.
I saw much less Sun gear than two years ago, only a couple of Sparc5s,
and a few disks and Sbus cards virtually no DEC gear, not even Alpha
(the bed of Dan Cohoe's truck notwithstanding). A few collectible
micros (Timex 1000, C-64 with all the goodies, Atari 800...), with one
guy having the pick of the litter - a Rockwell AIM-65 w/dual 8"
floppies (asking $500) and an Altair 8800b (turnkey frontpanel) with 2
matching 8" floppy cabinets and docs (asking $1000). I was really
disappointed at the sparseness of component vendors. There were a few
there, but nothing like days past. I was unable to locate a variety
of chips and switches that were explicitly on my shopping list of
parts for my Elf 2000, Real Console, SBC65C02, etc.
The weather was threatening rain at various points, but it did little
more than mist briefly, not even enough to have people close down.
The drive was incredibly foggy at 06:30, but cleared up by
mid-morning. Today looks gorgeous, with partly cloudy skies and temps
in the mid-70s. Tomorrow should be nice in the morning, turning to
rain as people go to leave.
The other thing that struck me was the number of empty flea market
spaces... in some cases, near the back, it was well over 60% in a
given area. Even on the dense side of the main aisle it wasn't
entirely full. I don't know if the looming clouds played a part, but
perhaps some Saturday-only folks may show up today to sell. I'd heard
that flea market space prices had jumped, so perhaps the market is
responding to the increase, or perhaps not as many people are willing
to gas up the truck to make the long trek. Either way, attendance
seemed to be good; the local news reported 30,000 attendees (no doubt
based on reported ticket sales), and was touting the $10M being spread
around by the Hams, much at local lodging and eating establishments.
Since I am less than 90 minutes away, it's still worth it for me. I
did get to meet a variety of people face to face from the list here.
Dan Cohoe's spot made a good place to cycle through to see who had
paused at the pile of CDC disk packs that Dan was using as bait to
snag mini-computer mavens who might have stuff squirreled away in
corners. Our planned meetup at the Rib Spot was a success, with
several classiccmp regulars and a few lurkers in attendance. Should
have thought to have gotten a group photo, but I was too tired to
think of it, and I'd left my camera at home in any case. Something to
remember for next time.
So in short, I found a few bargains here and there, with some people
willing to accept a bit below their asking prices, and some resolute
and firm, but that's to be expected on the opening day... Sunday is
always bargain day, especially on wet years, which this looks not to
be.
-ethan
P.S. - one fun moment was peering into a digital data recorder/logger
that Dan Cohoe had brought to sell and identifying the IM6100
processor and the 12-bit-wide bank of SRAM inside, c. 1979. I had
expected an ordinary 8-bit micro like a 6800 or Z-80, and was
surprised to find something off the wall.
