I seem to recall people mentioning, here, typewriters - good old
non-computerized typing machines.
I know someone who is looking for one. Doesn't need to be fancy;
indeed, fancy is a disadvantage here, or I would have already set said
person up with a computer+printer solution. "Electric, but not
electronic." It does need to be functional, though; the idea is to use
it, not put it on display or suchlike.
Anyone got one and willing to let go of it for some reasonable amount?
I can write a cheque for the machine plus shipping and scare up a
shipping address, if there's reason to. (I phrase it that way because
the place it'd be going is in a very rural area of western Canada, and
I'm not sure what shipping methods would be workable - but I can find
out from the putative recipient.)
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> -----Original Message-----
> From: chris [mailto:cb@mythtech.net]
> Sent: Wednesday, October 20, 2004 11:11 PM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Help MAC Quadra 600 OS
>
>
>
> I assume you are talking about a Quadra 800 not a 600. Try
> zapping the
> PRAM. Turn the Mac on, and hold Command-Option-P-R until you hear the
> startup bong again. Keep holding until it has cycled 3 times.
Yep, it is an 800, not 600. I just tried this and still NADA.
>
> If not, does this Mac have a CD Rom drive? I can send you a
> bootable CD
> with a System 7.5.5 installer.
Yes, it has a CD drive. I am located in northwest NJ. I can ftp the image if
you have a place to host it temporarily. What ever is easiest for you.
>
> -chris
> <http://www.mythtech.net>
>
Thanks,
Kelly
> From: Kelly Leavitt [mailto:CCTalk@catcorner.org]
> Sent: Wednesday, October 20, 2004 10:48 PM
> To: 'cctalk(a)classiccmp.org'
> Subject: Help MAC Quadra 600 OS
>
>
> OK. So I somehow hosed the boot drive on the Quadra I found
> the other day.
OK Everything else is the same, just that it is an 800, not a 600...
>OK. So I somehow hosed the boot drive on the Quadra I found the other day.
>All I did was unplug it to try and install A/UX on a new drive. I plugged
>the old drive back in after the A/UX install failed, and now I can't boot
>the quadra. There wasn't anything of great value on the disc, I would just
>like to be able to get the machine up and running System 7.5.3 (or whatever
>the latest free one was). Can anyone provide me with an ISO image of this?
>All I have available to create discs are PCs and they just aren't that easy
>to create a Mac image with (at least not yet).
>
>Any suggestions on what I could do to rescue the drive I killed somehow?
I assume you are talking about a Quadra 800 not a 600. Try zapping the
PRAM. Turn the Mac on, and hold Command-Option-P-R until you hear the
startup bong again. Keep holding until it has cycled 3 times.
See if it boots from the drive.
If not, does this Mac have a CD Rom drive? I can send you a bootable CD
with a System 7.5.5 installer.
-chris
<http://www.mythtech.net>
OK. So I somehow hosed the boot drive on the Quadra I found the other day.
All I did was unplug it to try and install A/UX on a new drive. I plugged
the old drive back in after the A/UX install failed, and now I can't boot
the quadra. There wasn't anything of great value on the disc, I would just
like to be able to get the machine up and running System 7.5.3 (or whatever
the latest free one was). Can anyone provide me with an ISO image of this?
All I have available to create discs are PCs and they just aren't that easy
to create a Mac image with (at least not yet).
Any suggestions on what I could do to rescue the drive I killed somehow?
Thanks,
Kelly
The first person, if not Jay, that wants a HP 2888A Disc File plastic
panel in very nice shape, can have it for postage.
William Donzelli
aw288(a)osfn.org
Hi Ethan,
>> I was recently given a Commmodore MODEM Model 8010 - this is
>> I am looking for:
>> - Information on the power supply - I did not get a power supply
>> with the modem - it has a 5-pin DIN type connector. Can anyone
>> give me the pinout and power requirements?
>
>Can't help there, but worst case, it shouldn't be difficult to
>reverse-engineer the power supply... if there is some kind of
>regulator, it might take a wide range of voltages. If not, then
>one of the pins is probably +5V. It's old enough that I wouldn't
>assume it uses a C-64 supply or even the voltages for the C-64
>(+5VDC, 9VAC), but it's worth looking at.
It's got a regulator, and some logic - a 6402 UART, and another
completely unmarked 40-pin chip - I'm guessing it's an PET-IEEE
controller of some sort.
Other apparent power sources from the connector head off into a maze
of op-amps and other analog circuitry, even with schematics it would
take a bit of work to figure out what supplies it was designed for...
I'm hopeing that I can find someone with this modem that can measure
the pins on the "wall wart" - at least then I have a starting point,
knowing the approximage no-load supply voltages. (It is a wall-wart,
I found a picture which shows the power-supply).
>> - Documentation? Anyone have a scan of the manual?
>
>Not me; sorry. Perhaps on funet?
>
>> - Information on how it is used ... What sort of IEEE device does it
>> show up as? Is there "special software" that is used with it? etc.?
>
>Worst case, you could write a quick BASIC program to try OPENing all the
>devices from 4 to 31 and see where it responds (once you get the power
>issue resolved). Without docs, it'll be hard to tell if there are any
>significant secondary addresses, though.
>
>As for special software, there should be at least a simple term program
>for it. It's possible to write one in BASIC - I did for the C-64 (with
>a VIC-MODEM). You'll have to do ASCII<->PETSCII conversion if you want
>to talk to a host expecting a VT100 or something similar. I used to
>use my simple term prog to talk to BBSes and CompuServe, c. 1982. It
>did everything I needed except download files (which wasn't how I was
>using the modem back in those days - I did mail, chat, online games,
>etc.)
>
>Again, check funet for anything related to the 8010.
Didn't find a thing on funet - I do have a local PET software expert who
can probably figure some of it out, but again, if I can find hard docs
or software it would save some head-scratching... Google didn't turn up
much except for a couple of pictures.
>Nice find. I've never seen one. Good luck on the hunt for docs.
Thanks, I did find a few references to it, and here is a fairly decent
picture (shows front-on view as well as both ends):
http://www.commodore.ca/gallery/hardware/pet_acc_coupler1.JPG
Next time I update my site I will include my own pics, but I just updated
so that will be a little while.
I got it quite by accident - I talked my wife into a 2-hour detour on our
Thanksgiving getaway (would have been a 10-hour drive later) to pick up a
"small load" of equipment that had been promised to me - I also warned her
to "pack light" -- ha..ha.. I completely filled the back of my Jeep from
floor to ceiling (which we ended up hauling around all weekend). After I had
everything packed, the guy started digging out little bits of stuff from his
garage, which I kept stuffing into nooks and crannies, near the end he
offered me this acoustic coupler, and it was only because it said "Commodore"
on it that I decided to find room for it (by then it was getting pretty hard
to find ANY space) - it wasn't until several days after unpacking and going
through the stuff that I looked at it closely, and realized that it had the
PET-IEEE interface.
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Vintage computing equipment collector.
http://www.parse.com/~ddunfield/museum/index.html
So I'll be appearing tomorrow on The Screen Savers on G4TechTV (just about
everyone in the US should be able to catch it since the merger opened up
both collective channels to most major cable/satellite systems).
The live show airs at 4pm PST (California) and usually repeats a couple
times after that every 3 hours or so. Check your local listings for exact
air times.
I'll be demoing a PDP-1 front panel replica hooked to a laptop running the
PDP-1 emulator on SIMH, further running Spacewar! with Phil Budne's XY
simulator code. I've also constructed some Spacewar! controllers modeled
after the original MIT controllers that will be used to play the game.
The front panel will be blinking and all that. It should be interesting
(somewhat) to watch.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
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Hi,
I know very little about electronics and eproms so this question might be
really easy. I would like to know what the difference is between a 23512
eprom and a 27512 and if there are any differences if its possible to make
some sort of adapter. Had a look at some schematics and they looked the
same to me, data lines on the same pins etc.
Any help is welcome.
Ow the reason I want to know this is that I want to read some old roms in
my EPROM reader.
Cheers,
Stefan.
