>> I do see real ratty ones for $10-$20 at flea markets,
>> with almost certain holes in the bellows and gummy shutters on the lenses,
>> and usually with visibly broken rangefinders. These are things that can
>> be patched up, certainly, but I wouldn't turn an absolute beginner onto
>> such a fixer-upper when for a very reasonable price you can get a clean
>> one.
>Sounds like quite a fun project, though. I don't subscribe to the myth
>that cameras can't be fixed at home, and that parts for them can't be
>made. I do both when I need to. Maybe I'm not an 'absolute beginner' :-)
No, you aren't :-). There's nothing incredibly complicated about getting
a fixer-upper back into reasonable shape. If a shutter is truly worn
out (not impossible for something that's been in professional service
for several decades!) entirely new shutters/apertures are still available.
See, for example, http://www.skgrimes.com/ . And new bellows,
ground glass, etc., are all available for a price. It certainly is cheaper
to get a "clean" used camera than a really ratty one where all the parts
need to be replaced, but there are ones "in-between" where a little bit
of TLC is all it needs to become usable.
>A large format camera is something that I want to have a go at making
>sometime. It doesn't look _too_ hard - certainly no worse than the sorts
>of things that model engineers routinely make. I'll not know until I try,
>I guess...
Take a serious look at the Bender view camera kit, http://www.benderphoto.com/
I'm certain it can be improved on :-). Personally, I prefer metal-bodied
view cameras for their durability.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
>On Wed, 14 Jul 1999 CLASSICCMP(a)trailing-edge.com wrote:
>> > Are there any
>> > polaroids out there with interchangeable lenses ?
>> Not in their current lineup.
>?? the backs for REAL cameras are no longer available??
No, I was simply remarking about the Polaroid-brand cameras.
>> Of course, if you're using a camera better than a 35mm
>> (say, a Medium Format or Large Format camera) you just put
>> a polaroid back on your camera and you're there.
>Thus having interchangable lenses.
>In addition, is the "Speed Magny"? still around? That was a Polaroid
>back for a Nikon F! It wrapped around the bottom with mirrors or prisms,
>so that the back was actually facing the subject.
Never *ever* saw one of those. How big was the resulting polaroid
exposure (i.e. was there optics in there to make it larger than 24mm x
36mm?)
>> At least here in the US, if you check out the swap meets and
>> flea markets it's easy to find an older 4x5 Crown Graphic with
>> good quality lens and 4x5 polaroid back for a few hundred $.
>> I got mine with a 127mm Ektar, a truly excellent lens from the
>> late 40's.
>Arrrgggh! "a few hundred $"?!? What are they on E-BAY?!? I got my
>cameras back when prices were reasonable (60s,70s), as in $20 for Graflex.
Well, my introduction came in the late 80's and early 90's, when I started
getting into cameras and darkroom stuff. A few hundred dollars will
still (my prices are based on what I see at Camera shows and
dealers, not from E-bay) buy you a clean Crown Graphic with a perfectly
operating lens, some film holders, and a roll-film or polaroid back.
I do see real ratty ones for $10-$20 at flea markets,
with almost certain holes in the bellows and gummy shutters on the lenses,
and usually with visibly broken rangefinders. These are things that can
be patched up, certainly, but I wouldn't turn an absolute beginner onto
such a fixer-upper when for a very reasonable price you can get a clean
one.
As a step up from the Crown Graphic, you can get an excellent used monorail
view camera with full movements for just a little more money. I got
my Calumet 4x5, 20" bellows extension monorail with a bunch of film holders
and a not-so-bad 210mm Japanese process lens from the mid-70's for $250. The
process lens, not surprisingly, is *excellent* for macro work. Brand
new setups are available from Calumet photo today (see
http://www.calumetphoto.com/ ) for not a lot more money.
>I got my Linhof Technica III from one of the largest camera stores, but it
>was in a paper bag labelled "most of a Linhof $20", and I had to make some
>parts.
If someone wants to make a camera, the Bender view camera kits are an
excellent project. See http://www.benderphoto.com/ . I wouldn't
trade my Crown Graphic or my Calumet for one, but I could see how
someone would prefer one they built themselves. The Bender camera
kits are *real* pretty when you're done, much nicer looking than my
gunmetal grey Calumet or heavily used Crown Graphic. But I'm sure
my Crown Graphic and Calumet have stood up to abuse that would've turned
the Bender into splinters.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
I received this in my bloated in box and thought that I should share this with
the rest of you.
Charles.
Carol Catchings wrote:
> ------------------------------------------------------------------------
>
> Subject: T'was The Night Before Y2K
> Date: Sun, 11 Jul 1999 14:37:39 -0700
> From: Ada Jane Cowper <ajcowper(a)juno.com>
> To: bobalbert(a)juno.com, barrett5(a)uswest.net, JIMJOANNE(a)WORLDNET.ATT.NET,
> Eybraddy(a)aol.com, hummingbird78(a)juno.com, jespooh(a)webtv.net,
> jhaumann(a)juno.com, arhering(a)juno.com, jeanlen(a)juno.com,
> loisjew(a)aol.com, dgkhoops(a)uswest.net, MISTERRJL(a)aol.com,
> dmiller6(a)cwix.com, jimimiller(a)tyler.net, murpheyr(a)goodnet.com,
> radie_luv.mau(a)juno.com, AudreyNovell(a)webtv.net, biged20(a)juno.com,
> jackscorner(a)juno.com, Dhvining(a)aol.com, marnwilson(a)aol.com,
> ACW24kt(a)aol.com, ccatchings(a)cap-az.com, lwmaple(a)uslink.net,
> JHStphnson(a)aol.com, j_alenskis(a)juno.com, maltshoppe(a)hotmail.com,
> AZ2gems(a)aol.com, hopinka(a)chavin.rcp.net.pe, RRVASQUE(a)logicnet.com.mx,
> milesbar(a)aol.com
>
> T'WAS THE NIGHT BEFORE Y2K
>
> Twas the night before Y2K,
> And all through the nation
> We'd soon see the bug that
> Caused such a sensation.
>
> The chips were replaced
> In computers with care,
> In hopes that ol' Bugsy
> Wouldn't stop there.
>
> While some folks could think
> They were snug in their beds
> Others had visions
> Of dread in their heads.
>
> And Ma with her PC,
> And I with my Mac
> Had just logged on the Net
> And kicked back with a snack.
>
> When over the server,
> There arose such a clatter
> I called Mister Gates
> To see what was the matter.
>
> But he was away,
> So I flew like a flash
> Off to my bank
> To withdraw all my cash.
>
> Then word of the shortage,
> Caused such a demand
> That the money was gone,
> And the streets were all jammed.
>
> When what with my wandering eyes
> Should I see on my screen
> But Millennium Bugsy,
> This must be a dream!.
>
> The hack of all hackers,
> Was looking so smug,
> I knew that it must be
> The Y2K bug!
>
> His image downloaded,
> In no time at all,
> He whistled and shouted,
> In a loud download drawl.
>
> "Go Intel! Go Gateway!
> Now HP! Big Blue!
> Everything Compac,
> And Pentium too!
>
> All processors big,
> All processors small,
> Crash away! Crash away!
> Crash away all!
>
> Ada Jane Cowper
> ajcowper(a)juno.com
> 520-477-2474
>> > If not, one of the mayor advantages from using
>> > 35mm cameras is cone.
>> Of course, if you're using a camera better than a 35mm
>> (say, a Medium Format or Large Format camera) you just put
>> a polaroid back on your camera and you're there.
>> At least here in the US, if you check out the swap meets and
>> flea markets it's easy to find an older 4x5 Crown Graphic with
>> good quality lens and 4x5 polaroid back for a few hundred $.
>> I got mine with a 127mm Ektar, a truly excellent lens from the
>> late 40's.
>I've never seen that, but it's interesting -
>so how is the picture quality ?
Top-notch. I regularly make 16" x 20" enlargements from the 4x5 negatives.
>And most important, where to look ?
>For this kind of stuff I'm a complete newbie.
There's a web site just for folks like you: http://www.graflex.org/
It includes the Speed/Crown Graphic FAQ, and pointers to where you
can buy these cameras and parts.
Again, I don't know about Europe, but here in North America *every*
decent professional camera store will have large format stuff, including
at least some selection of Crown and Speed Graphics.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
I got an e-mail recently from someone offering me an Esco 31 survey
calculator. I'd never heard of one but I decided to take a chance and
bought it sight unseen. It came today. The seller forgot to mention that
it said Tektronix on the back! Yeap, it's a rebadged Tektronix 31! Does
anyone have some instructions for one? Does anyone know where to find
tapes for these?
Joe
Ok... you can blame John Lawson for reminding me about this. I just got
back from my annual scrounge trip to the Bay Area. Said trip netted me a
good-sized pile. While not all of it is "classic," I figure it's worth
posting.
* Upgrade components for my own system to K6-2/400, etc.
* A Digilog 300 datascope. Haven't fired that one up yet.
* My very first DEC Alpha system -- specifically, a 3000/600.
* Two Wellfleet routers.
* A Livingston 'Portmaster' IRX/Firewall router.
* A stack of DEC'ish boards, including a pair of Dilog DQ132's, a DQ686,
and a pair of Sigma RQD11E QBus ESDI controllers.
* A collection of pre-divestiture Bell System technical manuals (Station
Services, Key System Services, and Data Services). These are the white
paperbacks with the yellow/blue skunk stripes and the pre-breakup Bell logo.
* A Sorensen 0-40V/25A power supply (Heavy!)
* A nice tabletop VME chassis that still had a Force Computers 68040 CPU
board installed.
* A big Cabletron network hub chassis with 60(!) 10Base-T ports in the
form of five 12-port cards. I got it 'cause the backplane is rated for
FDDI, and I figure that means I can also use 100Base-T on it if I can find
the appropriate card.
* A pair of Sun SPARCStation IPC's.
* Keyboard/Video/Mouse extender for PCs.
* Adobe Acrobat 4.0 for around $80.
That's all I can think of at the moment. Some of it is for future
projects, and some for current ones. All I can say is I'm glad to be back.
That was a long trip!
'Til later...
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com
Amateur Radio:(WD6EOS) E-mail: kyrrin(a)bluefeathertech.com
SysOp: The Dragon's Cave (Fido 1:343/272, 253-639-9905)
"Our science can only describe an object, event, or living thing in our own
human terms. It cannot, in any way, define any of them..."
I'm sorry, I didn't this was a USA 'only' listserv. Excuse
me while I take my dirty foreign hands to remove myself from the list!
Great computers did and do exist outside of the USA.
Blue
PowerHouse consultant
Rhode Island, USA
Disclaimer:
The opinions and ideas expressed in this message are my own
and have no relationship to my current employer, Initial Technical Staffing,
its client CCI, or any of CCI's clients.
-----Original Message-----
From: Kai Kaltenbach
[mailto:kaikal@MICROSOFT.com]
Sent: Friday, June 18, 1999 5:12 PM
To: Discussion re-collecting of classic
computers
Subject: Top 150 Collectible
Microcomputers
Here's the first draft at a list of the Top
150 Collectible Microcomputers
(from the U.S.A.). I would have gone for
Top 100 but there are just too
many great machines, and 200 is too many.
It's currently at 133 items. Some related
models are combined as one, even
though they are rather different... other
similar models are kept separate.
This is basically just because I personally
feel they rate their own
separate listing, feel free to disagree.
Please add items! Items on the list should
meet the following categories:
1) Collectible Microcomputer (yes, I know
the H-11 is on here as an
"honorary" micro)
3) Sold in the USA
4) Available from a manufacturer (not just
plans in a magazine)
The list:
Altos 586
Altos ACS 8000
APF MP1000
Apple I
Apple II
Apple II+
Apple II+ Bell & Howell "Black Apple"
Apple IIc / IIc Plus
Apple IIe / IIe Platinum
Apple IIgs / IIgs Woz Limited Edition
Apple III
Apple III+
Apple Lisa / Macintosh XL
Apple Macintosh 128
Apple Macintosh 512K Through SE
Apple Macintosh Portable
AT&T Unix PC / 3B2 / 7300
Atari 400
Atari 800
Atari XL Series
Atari 520ST / 1040ST
Atari Portfolio
Byte Computers Byt-8
California Computer Systems (CCS) S-100
Coleco ADAM
Commodore/MOS Technologies KIM-1
Commodore PET 2001-8
Commodore PET 4032 / 8032
Commodore SuperPET SP9000
Commodore VIC-20
Commodore 64 / 65
Commodore 128 / 128D
Commodore C16 / Plus 4
Commodore SX64
Commodore Amiga 1000
Commodore Amiga 500
Compaq Portable PC / Plus / II / III
CompuColor II
CompuPro S-100 / 8-16
Convergent Technologies WorkSlate
Corvus Concept
Cromemco C-10
Cromemco System One
Cromemco System Three
Cromemco Z Series
Data General One
DEC Rainbow 100
Digital Group Systems
Dynalogic Hyperion
Epson HX-20
Epson PX-8 Geneva
Epson QX-10 & QX-16
Exidy Sorcerer
Gimix
Franklin ACE 1000 / 1200
Hewlett-Packard HP85
Hewlett-Packard HP150
Heathkit H-8
Heathkit H-11
Heath-Zenith H88/H89
IBM 5100 Personal Computer
IBM 5140 PC Convertible
IBM 5150 Personal Computer
IBM 5160 PC-XT
IBM 5170 AT
IBM 5155 Portable PC
IBM PCjr
IBM PS/2 Model 80
IMSAI 8080
IMSAI PCS-80
IMSAI VDP-80
Ithaca Audio InterSystems DPS-1
Intertec SuperBrain
Kaypro II
Kaypro 4 / 10
Lobo PMC-80
Mattel Aquarius
Mindset PC
MITS Altair 680
MITS Altair 8800
MITS Altair 8800a
MITS Altair 8800b
MITS Altair 8800b Turnkey
Morrow Decision 1
Morrow Micro Decision
Morrow Pivot
NEC PC-6001A
NEC PC-8001A
NEC PC-8201A / PC-5000
North Star Advantage
North Star Horizon
Ohio Scientific Challenger C1P
Ohio Scientific Challenger C4P
Ohio Scientific Challenger C3D
Osborne 1
Osborne Executive
Osborne Vixen
Otrona Attache
Polymorphic Systems POLY-88
Processor Technology SOL
Quasar/Panasonic HK2600TE Hand Held Computer
Radio Shack TRS-80 Model 1
Radio Shack TRS-80 Color Computers 1-3
Radio Shack TRS-80 Model 2
Radio Shack TRS-80 Model 3/4
Radio Shack TRS-80 Model 4P
Radio Shack TRS-80 Model 12 / 16 / 6000
Radio Shack TRS-80 Model 100 / 102 / 200
Radio Shack TRS-80 Micro Color Computer
MC-10
Radio Shack TRS-80 Pocket Computers
RCA COSMAC 1802 / ELF / Super ELF
Rockwell AIM-65
Sanyo MBC-1000
Seattle Computer Products 8086
Sharp Pocket Computers PC-1500 / PC-1500A
Sinclair ZX80
Sinclair ZX81 / Timex-Sinclair ZX1000
Smoke Signal Broadcasting Chieftain
Spectravideo SV-318 / SV-328
Sphere
SWTPC (SouthWest Technical Products) 6800
SWTPC (SouthWest Technical Products) 6809
Synertek SYM-1
Texas Instruments TI 99/4A
Timex-Sinclair 1500
Timex-Sinclair 2068
Tomy Tutor
Vector Graphic Vector-1
Vector Graphic Vector-4
VideoBrain
Vtech Laser 128
Xerox 820
Zenith Z-110 / Z-120
Hi Tony,
>I can tell you a little about some of the Philips P800 machines....
>....Feel free to ask specific questions on the P850 or P851. I have the
>manuals, and I think I know where I put them :-)
Thanks very much for the reply, that's increased my knowledge of these machines
by at least 100%!!!!
I'd forgotten that they existed at all until I spotted a message from you
mentioning them. ISTR seeing one sometime around 1978 when I visited a computer
installation as part of my computers course at school, but that's pretty much
all the contact I've ever had with them.
My main questions at the moment are, where should I start looking to acquire
one and (if I had a choice) which machine would you recommend to try and get
hold of?
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Hi William,
>microNovas are hind to find these days, unlike microVAXen or the
>"micro"PDP-11s....
I feared this might be the case, I've never actually come across a DG machine
of any kind here in the UK during the 12 years or so that I've been collecting.
>If size is an issue, get yourself a real Nova, like a 4, or maybe an
>Eclipse....
Roughly how big are they?
BTW Do you know of any sites on the web where I could get some information on
DG machines?
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Hi Jeff,
>....that the DG AViiON would be a great addition to any
>collection.
>....1. The ultimate Orphan. One of a small handfull of machines
> to use Moto's 88000 CPU chipset.
VERY interesting, I've never managed to find a machine which uses that chipset.
What other machines came out using the 88000?
>3. Runs DG/UX (subspecies of UNIX). Can't get much cooler
> than that.
Good point.
>....1. Make sure you get the software with it, as replacements
> are hard to come by, and ludicrously expensive.
Sounds rather like my AS/400.... :-(
>3. No free operating system available for it (no LINUX or *BSD).
Is this because the technical info required for such a project isn't available,
or hasn't anyone gotten around to it yet?
It seems the former is true in the case of the AS/400. :-(
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Hi James,
>....There is a GPL'd utility for Linux that will download from many
>of the popular cameras, with more being added rapidly.....
Do you know if this utility supports the Mustek VDC-100? What's the name of the
software?
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
>Just yesterday I handled a copy of the doc's for the CP/M version. This
>implies that it was a CP/M program. I doubt that MuMath/MuSimp was
>generated as an apple version as well, though stranger things have
>happened.
muMATH on the Apple II is not CP/M, nor is it DOS 3.3 or ProDOS. It uses
its own disk operating system which is a bit of a pain if one wanted to
extract files from the system disks. However, the disks are still
16-sector and can be made into images for emulators or backed up easily.
This was done so that the system would run on an Apple II+. DOS 3.3
used too much memory so something simpler had to be found and it predates
ProDOS. I still find it amazing that muSIMP could run at all on such a
small system.
Was muSIMP ever ported to anything "larger"?
Ron Kneusel
rkneusel(a)mcw.edu
Auction is still on, some good systems still not spoken for:
http://net-24-42.dhcp.mcw.edu/auction/auction.html
Hello everyone....
I was just going through some old boxes in my basement, and found some stuff
that I was supposed to pay shipping on. I know that there was someone from
this list that sent me 3 IBM 4869 floppy drives...
I think that was all from the list (I hope)
Could you please contact me with your address and the amount of shipping (I
think it was somewhere around $10?)?
ThAnX (I've gotta keep better track of this stuff...)
///--->>>
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
Guys:
I'm working on a job here in the Dallas-Ft worth area; anybody know
of any good surplus places, or scrapyards around here? There
ain't nuthin' where I live, there's gotta be some gold in these thar
hills! :^)
Jeff
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
<What is the approximate resolution of a 35mm frame?
Good enough that you can project it to greater than 8 foot by 8 foot image
and still not see the grain with reasonable film.
For printing you get smooth images at greater than 1000 dots per inch and
photo typsetters are around 2500 DPI.
digital cameras at 1024x768 are better video camaras (400 V by ~250H
<~500 with interlace>).
When you take 1024x768 and stretch it to 10.24"x7.68" the image is only
resolved to 100 DPI and image smoothing may help but only to a point.
Allison
Max Eskin <max82(a)surfree.com> wrote:
> On Tue, 13 Jul 1999, Chuck McManis wrote:
> >That question will fry your brain. It depends on what film you use, what
> >speed you shoot it at, and what process you use to develop it.
>
> But, isn't there a maximum resolution?
>
> --Max Eskin (max82(a)surfree.com)
> http://scivault.hypermart.net: Ignorance is Impotence - Knowledge is Power
Hi
It is determined by the f/ratio
and the color that you are trying to focus. It is a wave property
of light. A point sourse of light can only be focused to certain
disk size. The Airy disk is defined as 1.22 * wave_length * f_ratio.
The smallest distance that one can call two disk as being
separate is call Dawes criteria and is when the two spots
are 1 Airy disk apart. Other shapes of objects will have
sightly worse problems of separation but this is a good rule
of thumb for light.
It is interesting that stopping a lens down, makes a higher
f/ratio and makes the spot size smaller. Stopping the lens down
also improves depth of field. Exposure time also goes up.
You just can win.
Dwight
>What is the approximate resolution of a 35mm frame?
A typical film has a resolution of 50 to 200 lines per millimeter
(films intended specifically for high resolution technical use may get
twice this, at significant loss in tonality). A 35mm full frame is
36 mm wide by 24 mm long, or 3600 x 2400 pixels assuming a "pixel"
is a "line" and 100 lpmm resolution. But as pointed out, it could
be twice that resolution or half that resolution depending on the
film.
The better lenses, when properly focused and used on a tripod, can
resolve better than 100 lines per millimeter. Your typical point
and shoot lens will be lucky if it can resolve 50.
Now compare this to what a 4 in x 5 in "large format" camera can get:
assuming only 50 lines/mm (something easily done with an 60 year
old lens), you get 6250 x 5000 resolution. Not bad for technology
that was mature over a half century ago.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
<What pin does the 8080A (raise/lower?) to indicate
<that it is doing an I/O read/write instead of a memory
<read/write? Also, does anyone have a copy of the IMSAI
<MPU-A Rev-4 schematics that they could scan and send me?
Your thinking 8085... 8080 is very different.
There are two pins on the CPU:
WR/ (pin 18) indicates precessor write (memory or IO).
PDBIN (pin 17) indicates a IOREAD, MEMORY READ, INSTRUCTION FETCH
The latched 8bits from the data bus at Sync(pin 19) time tell if the
operation is
D0 SINTA Status interrupt acknowledge
D1 SWO Status write out
D2 SSTACK Status Stack operation
D3 Shlta Status Halt acknowledge
D4 Sout Statue output (IO output operation commences)
D5 SM1 Status M1 state (instuction fetch)
D6 SINP Status input (IO input operation commences)
D7 Smemr Status memory read
Those status signals only indicate the next bus cycle activity and must be
cates with Sync (psync on the bus), PDBIN, WR/ before the whole mess makes
sense. Intel later created the 8228/38 chips to do this. Otherwise it
takes a good handful of gates to sort it out.
I have the Bursky book, no scanning ability. if you can altair docs the
8080 and 8212 status latch portion of the altair CPU are the same.
Allison
What pin does the 8080A (raise/lower?) to indicate
that it is doing an I/O read/write instead of a memory
read/write? Also, does anyone have a copy of the IMSAI
MPU-A Rev-4 schematics that they could scan and send me?
Thanks,
Bill
Who was the person from, I think Duluth, who wanted the Sun 3/50? I have it
now, without the keyboard which I need for my 3/60 system. If you're still
interested in it, just let me know and we can arrange a time for you to
come pick it up.
-Lawrence LeMay
lemay(a)cs.umn.edu
I'll have to check tonight, but I'm 99.9% sure that I have several spare
G111 and G233 boards.
Got anything particular on your trade list?
Jay West
-----Original Message-----
From: Lawrence LeMay <lemay(a)cs.umn.edu>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, July 12, 1999 9:03 PM
Subject: looking for G111 & G233
>Well, I went and purchased a 8K core memory board on ebay, mainly
>because I recognized it as a G646C core memory plane from a
>pdp8/e or /f.
>
>If someone has the G111 and G233 boards that should go with this,
>but not the core memory, then perhaps i can trade you something
>for them.
>
>-Lawrence (That core plane will work in a Muniac computer too???) LeMay
>
Hi,
Can anyone confirm that the Spectrum +3 (I have a couple with "broken" floppy
drives) uses the same drive mechanisms as the Amstrad CPC6128?
If so, I will order some replacement drive belts for my +3s, since the belt
perishing is almost certainly the problem.
With this in mind, does anyone else need some replacement drive belts? The
price is about 1.75 pounds each (I'm in the UK) if I order five or more. If
so, please let me know.
-- Mark
I don't know how this message got to me. As you can see it got sent to the
wrong address.
ron fraser
----------
>From: Derek Peschel <dpeschel(a)u.washington.edu>
>To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
>Subject: Re: Classics for sale!
>Date: Mon, Jul 12, 1999, 3:45 PM
>
> This relates to Ron Kneusel's auction.
>
> Ron, I couldn't reply to you -- your rkneusel(a)mcw.edu address didn't work.
>
> Does the Apple version of muMath require the native Apple DOS or is it a CP/M
> program?
>
> Do you have a list of the Kaypro original software and the manuals? (It
> would probably be too much work to list the unoriginal software you're also
> selling.)
>
> Thanks,
>
> -- Derek
>
>
>
>
I have:
Hard Disk Operating System
Hard Disk Initialization System
ST80/III
Scripsit
Blackjack
Taipan
ExtBal
Host 480
Combat
Delay
TRSDOS 1.3
General Ledger
I also have DBASE II, that I think will run on a III.
All I have now is a model 4P, and I don't know whether I can format a disk that will work on a III. Any ideas? My 4P manual is no help on this one. Do you know whether I can use the 22Disk utility to read these files on my PC and mail them to you? This has worked well for me on certain formats (Osborne, Kaypro, etc.).
Wayne
>>> "Jason <the GeNeRaL>" <roblwill(a)usaor.net> 07/13 1:08 PM >>>
Does anyone have any Programs for the Model III on disk That they would
either want to sell or cold email me a copy (teledisk)? I have some various
old PC and a few old Mac programs that I'd be willing to trade (either
through email or snail mail -email me for a list of what I have, or I could
post it to the list).
I'm mainly looking for word processing/spreadsheet software and maybe some
games.
ThAnX,
-Jason
!
!
!
I have in my possession a Sun 4/110 main unit in unknown operating
condition. It appears to be made as a desktop unit but has a factory set
of pieces that make it stand upright on the floor. As far as I can tell
it was pulled directly from service but has no mouse, keyboard, monitor,
etc. it doesn't appear as if anyone has gotten inside either so i'm
assuming it's a complete unit.
Anyone want to make me an offer on this? I am always in need of common
PC hardware that I could trade for the thing, especially SCSI cdroms and
hard drives (preferably 1gb or bigger). Remember that you'd be getting
basically a "pig in a poke" as I have no equipment to use to set it up
or test it with so it's strictly on a chance that it might be fully
operational. The unit is fairly heavy but probabl not more than 45 lbs.
--
Russ Blakeman
Clarkson, Ky USA
Remove "nospam.' in email address to reply
Just yesterday I handled a copy of the doc's for the CP/M version. This
implies that it was a CP/M program. I doubt that MuMath/MuSimp was
generated as an apple version as well, though stranger things have happened.
It wouldn't surprise me to find a version of Apple diskettes for use with
Apple CP/M.
Dick
-----Original Message-----
From: Ronald Fraser <therunk17(a)earthlink.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, July 13, 1999 8:29 AM
Subject: Re: Classics for sale!
>I don't know how this message got to me. As you can see it got sent to the
>wrong address.
>ron fraser
>
>----------
>>From: Derek Peschel <dpeschel(a)u.washington.edu>
>>To: "Discussion re-collecting of classic computers"
><classiccmp(a)u.washington.edu>
>>Subject: Re: Classics for sale!
>>Date: Mon, Jul 12, 1999, 3:45 PM
>>
>
>> This relates to Ron Kneusel's auction.
>>
>> Ron, I couldn't reply to you -- your rkneusel(a)mcw.edu address didn't
work.
>>
>> Does the Apple version of muMath require the native Apple DOS or is it a
CP/M
>> program?
>>
>> Do you have a list of the Kaypro original software and the manuals? (It
>> would probably be too much work to list the unoriginal software you're
also
>> selling.)
>>
>> Thanks,
>>
>> -- Derek
>>
>>
>>
>>
The John Bell 6502 board used to be advertised in the back pages of pre-1980
Byte magazines, along with a selection of other JB cards. I seem to recall
the 6502 card was minimal-chip system essentially aimed at "embedded
processor" type applications. So I don't think it came with a preprogrammed
EPROM; you were expected to develop your own firmware for it. They had
another bare board for a video display terminal based on an Intel 8085
(basically an implementation of the circuit in an Intel application note)
and they also sold some low-cost interface cards for Apple II parallel
interfacing using the 6522 VIA chips that were then popular in Commodore
Pets. I remember building a couple of those JB interfaces for lab
experiments. I wonder who "John Bell" was and whatever happened to him?
Arlen Michaels
> -----Original Message-----
> From: Marvin [SMTP:marvin@rain.org]
> Sent: Sunday, July 11, 1999 9:40 PM
> To: Discussion re-collecting of classic computers
> Subject: Other Bazaar Boards
>
<snip>
> Another board that I picked up is a John Bell Engineering 6502
> Microcomputer. At this point, I don't know if it works, and a couple of
> the
> chips are missing including the EPROM. I have the docs for the 2716 EPROM
> programmer, but didn't find the board.
>
<snip>
--
Arlen Michaels amichael(a)nortelnetworks.com
Nortel Networks, Ottawa, Canada
I had one in my possession back in the days when it might have been of use,
but since it wasn't at that moment, I didn't pursue it. It's not the SRAM I
wanted that week, but I remember it was an odd DRAM or shift register or
some such. 22 pins was not a popular package.
Dick
-----Original Message-----
From: Dave Dameron <ddameron(a)earthlink.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, July 12, 1999 7:25 PM
Subject: Re: Can anyone ID these SEMI chips?
>At 11:24 PM 7/11/99 -0700, Doug wrote:
>>Hi everyone,
>
>> These are 22 pin chips, made in 1977, but I can't
>>seem to find any chip manufacturer named SEMI or
>>any reference to this 4200 number.
>>
>> Can anyone identify these chip?
>>
>I don't know that part number (a 4k dynamic ram like Intel 2107??), but the
>company was "EMM Semi", a part of
>Electronic Memories & Magnetics. They were in Phoenix, AZ.
>-Dave
>
On Jul 12, 20:51, Zane H. Healy wrote:
> Subject: Re: DEC H7861 Power Supply Question
> >Does anyone know the +5V and +12V current ratings of a DEC H7861 (Rev B,
ECO
> >1) power supply?
> >
> >Thanks,
> >Bill
>
> Erm, might help if you mentioned WHAT it came out of, so we know if we've
> got doc's on it :^)
It's the PSU from a BA-11S, as in a PDP-11/23plus. 5V @ 36A (min load 2A)
and 12V @ 5A.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Well, I went and purchased a 8K core memory board on ebay, mainly
because I recognized it as a G646C core memory plane from a
pdp8/e or /f.
If someone has the G111 and G233 boards that should go with this,
but not the core memory, then perhaps i can trade you something
for them.
-Lawrence (That core plane will work in a Muniac computer too???) LeMay
This is another oddity that I spotted Friday. It's a black box about 3
feet high by 1 x 2 feet with 2 chrome legs that stick out to one side with
castors on the end of them. It has an 8" floppy drive near the top and a FH
5 1/4" hard drive inside. There were several WIDE ( 60 pin?) ribbon cables
hanging out of it. Inside at the bottom it has a card rack with about 6 or
8 Multi-bus cards in it. The label on the outside says that it was made by
Daisy. Any one have any idea what it is?
Joe
On Sun, 11 Jul 1999 Doug Coward <mranalog(a)home.com> wrote:
>I have was appears to be a memory board made by "EMM".
>It also appears to be Q-bus, at least the power and
>ground seem to be in the right places to be Q-bus.
>Anyway, the board has 64 of these chips, and looking
>at the interconnection between chips, they appear to
>be arranged in 2 groups of 32. The chips are labeled:
>
> SEMI
> 4200ACC
> 7733
>
> These are 22 pin chips, made in 1977, but I can't
>seem to find any chip manufacturer named SEMI or
>any reference to this 4200 number.
>
> Can anyone identify these chip?
I had almost forgot about having a copy of the 1980 IC Master.
Anyway, you have a 4096x1 Static Ram chip
The book lists it as a 4200A made by EMM/Semi:
4096x1
200ns access
NMOS
Tri-State output
22 pins
+/- 5v & 12v supply
If they still exist:
EMM/Semi
2000 W. 14th St.
Tempe, AZ
(602) 968-4431
(800) 528-6050
HTH,
Mike
Hello, I have two binders full of every CogWheels newsletter ever printed
(Cincinnati, OH Osborne user's group). Does anyone have any interest in me
scanning them and putting them on the web? Or does anyone need any
photocopies?
An old senile man from the group handed me the two binders and told me to
look at them ... I have no idea if this mean they're mine or he wants them
back... same thing with an Osborne I I'm working on.
Oh well.
Kevin
-------------------------------------------------------------------------------
"It's you isn't it? THE BASTARD OPERATOR FROM HELL!"
"In the flesh, on the phone and in your account..."
-- BOFH #3
Well, whadayaknow! Could it be our James Willing referred to as "Jim
Willing" in the sidebar of the referenced "Computerworld" flashback article
below? I thought I was going to just see a reference to my AWA colleague,
but lo!, Jim's in there too!
>Reply-To: antiquewirelessassociation(a)egroups.com
>Date: Mon, 12 Jul 1999 19:24:29 -0400
>From: "John Dilks, K2TQN" <oldradio(a)worldnet.att.net>
>Organization: NJARC and the OldRadio Museum
>To: list
>Subject: [AWA] A little off the Old Radio topic, but if you're interested:
>I'm in Computerworld this week, July 12.
>
>To my Radio friends,
>
> There is a write-up about me and the 1976 Personal Computing(R) Show
>in "Computerworld" this week, July 12. The on-line version is at the
>following URL:
>
> http://www.computerworld.com/home/print.nsf/all/990712B38A
>
> (Over half of the attendees to the 1976 show were radio hams.)
>--
>73' John Dilks, K2TQN
>
> Webmaster for Antique Wireless Information ** New **
> http://www.eht.com/oldradio/awa
>-=and=-
> for the New Jersey Antique Radio Club
> http://www.eht.com/oldradio
>
> Please visit my OldRadio Museum
> http://www.eht.com/oldradio/museum
>-
Looks like Jim and J. Dilks are but two of the players, albeit minor, of
the just launched revolution in personal computing and in there
shoulder-to-shoulder with some of the pioneering manufacturers and
marketers. Kinda neat!
Regards, Chris
-- --
Christian Fandt, Electronic/Electrical Historian
Jamestown, NY USA cfandt(a)netsync.net
Member of Antique Wireless Association
Check our redesigned website!
URL: http://www.antiquewireless.org/
This appeared on alt.sys.perq today - is anyone here interested? If
anyone in the UK does rescue this machine (and I hope they do), I'd be
happy to give some advice on sorting it out.
Please reply to the poster below and not to me.
-tony
----------------------------------------------------
I am the proud(?) owner of a Perq 2 system. Unfortunately it has come to
pass that my house is not big enough for the both of us.
It hasn't been booted for some years but made it all the way to 15 on the
diagnostic counter when I tried the other day. I believe that spells hard
drive trouble, which may or may not be fixable.
As far as transport is concerned, I live about 30 miles SW of Cambridge, UK
and it will be the responsibility of the new owner to transposrt it from
there to wherever.
Anyone who is interested mail me at graham(a)muscat.com.
Graham.
Sorry to all on the list for this personal traffic; I don't have an email
address handy for Mr. Bill Yakowenko.
Bill;
I'm getting the eproms you wanted from overseas. Send me your mailing
address so I can forward them to you.
Thanks!
Jay West
In one of my rambling, random searches I came across an interesting site
chock-full of pictures and history. For those who haven't see it:
http://www.wins.uva.nl/faculteit/museum/
Kept me busy for a couple of hours...
Aaron
Hi everyone,
I'm curious about identifing some chips.
I have was appears to be a memory board made by "EMM".
It also appears to be Q-bus, at least the power and
ground seem to be in the right places to be Q-bus.
Anyway, the board has 64 of these chips, and looking
at the interconnection between chips, they appear to
be arranged in 2 groups of 32. The chips are labeled:
SEMI
4200ACC
7733
These are 22 pin chips, made in 1977, but I can't
seem to find any chip manufacturer named SEMI or
any reference to this 4200 number.
Can anyone identify these chip?
Thanks in advance,
--Doug
====================================================
Doug Coward dcoward(a)pressstart.com (work)
Sr. Software Eng. mranalog(a)home.com (home)
Press Start Inc. http://www.pressstart.com
Sunnyvale,CA
Curator
Analog Computer Museum and History Center
http://www.best.com/~dcoward/analog
====================================================
I just picked one of these up and have been able to find precious
little info on it. Mainly, it doesn't have a keyboard, can anyone help
me out (either with a keyboard, how to rig one up, what other
keyboards may work, etc). Any other info would be great.
TIA
George
I have a call into the contact person regarding the MassPar system.
-- Tony
> ----------
> From: William Donzelli[SMTP:aw288@osfn.org]
> Reply To: classiccmp(a)u.washington.edu
> Sent: Monday, July 12, 1999 4:21 PM
> To: Discussion re-collecting of classic computers
> Subject: Re: Last call on MassPar, HP3000, etc.
>
> > A couple of people have talked to me about the MassPar and HP3000, but
> so
> > far nobody has taken any steps to acquire them. If they last another 10
> > days "intact" I will be surprized. Both are located in the SoCal area,
> and
> > both could be removed with a small truck (with a lift gate) and a couple
> > hundred (or so) bucks. The HP though has a good twenty 18" cube boxes of
> > manuals which will be a load in themselves.
>
> Is there any chance someone could save at least some of the MassPas
> boards?
>
> William Donzelli
> aw288(a)osfn.org
>
At 09:25 AM 7/12/99 -0700, Aaron wrote:
>
>
>
>I'm not *totally* against cannibalizing machines for donor parts, but in
>this case...
>
>I guess it depends how much weight you give to the rarity factor when you
>calculate the value/collectability of old machines, but Cadnetix and older
>Daisy CAD stations are virtually extinct. I've spent about two years
>trying, unsuccessfully, to find *any* other information about the one I
>have. I finally tracked down one of the original engineers, a Mr. Wolfgang
>Moritz, who was trying (again unsuccessfully) to put me in touch with some
>of the people involved in the design of the system I own. I consider the
>system I have, non-operational and all, to be the most interesting system
>I own simply for the fact that it is the only one I've ever seen or even
>heard about!
>
>As someone just pointed out, these machines were really the pinacle of CAD
>technology at the time of their release. Within the paperwork I got with
>mine are several invoices for the original lease; the system cost tens of
>thousands of dollars in the mid 80's. I'm not sure if you could get it to
>do anything without a monitor/kbd/etc, but I think it's worth a few
>dollars and the trouble to haul it home simply for the history and rarity
>of the machine.
>
>Just my .02,
>
>Aaron
Aaron,
In an ideal world you'd be completely right about not scrapping old
machines but it's simply not practical to rescue every odd machine out
there. I see HUNDREDS of machine being scrapped every week and a fair
number of them are unique. It's impossible to save any significant number
of them. For example, just at that one place on that one day I found the
Daisy, three HP 7906 drives, a HP 9830, a HP 9866 and a pile of Hetra
machines, a complete Sun 4/260 and two stacks of smaller Sun computers. We
got the stacks of Suns and we're trying to get the 260 and HPs. At least
if they have to go it's better that their parts be saved to repair the ones
that are left instead of being sent to the land fill.
Joe
>
>
--- Megan <mbg(a)world.std.com> wrote:
>
> This weekend, I scored a couple of boards in the Qbus space...
> o An ABLE corp QNIverter
> I think RM03s are supported by the KS10, and I *think* I have
> an RM03-look-similar somewhere in my apartment (warehouse).
> If this is true (and if I can find the controller), I might just
> be able to get a less-power-hungry -10 system going in the
> near future.
Since you seem to have gotten the answer to the Qniverter question, let me
mention that if you are looking for _real_ RM03's, I have access to a couple
of them in Dayton, Ohio. I grabbed the 15Mb 11/750 that was once attached
to them, but I haven't gone on a last scrounging run (my friend's trailer is
still under repair). (There's also a short rack with Fuji Eagles and an SI9900
and taller rack with a TS11).
If anyone really needs one or two RM03's, I am fairly sure I can still get
them. If I go get them for myself, I'm likely to part them out.
-ethan
===
Infinet has been sold. The domain is going away. Please
send all replies to
erd(a)iname.com
_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com
This relates to Ron Kneusel's auction.
Ron, I couldn't reply to you -- your rkneusel(a)mcw.edu address didn't work.
Does the Apple version of muMath require the native Apple DOS or is it a CP/M
program?
Do you have a list of the Kaypro original software and the manuals? (It
would probably be too much work to list the unoriginal software you're also
selling.)
Thanks,
-- Derek
Hi; this is not strictly covered by the charter of the list, but someone
on it mentioned running across them with some frequency, or at least once.
As it turns out the 850 I paid a fair amount of money for with the
intention of actually using it is a "pre--General-Announcement"
unit---essentially a hardware prototype. This isn't that big of a deal,
but there are some unresolved hardware issues with respect to AIX support
which make the laptop difficult to work with.
Can I ask the person who saw these units at auction to contact me
off-list, please, with regard to acquiring another 850?
ok
r.
Looking to clear some shelf space and don't like ebay so in classic
fashion I'm running my own. Take a look. Highlights include:
TI-99/4 (not 4A!)
TS-2068
TS-1000
Kaypro 10
Kaypro 4
Kaypro 2
Kaypro II
TRS-80 Coco 1
TRS-80 pocket computer PC-2
Coleco ADAM
SWTPc S/09 System
all with various accessories and manuals. Also software and books,
including original muMATH/muSIMP for the Apple II.
http://net-24-42.dhcp.mcw.edu/auction/auction.html
is the URL.
Ron Kneusel
rkneusel(a)mcw.edu
Aaron,
At 09:13 AM 7/12/99 -0700, you wrote:
>
>
>On Mon, 12 Jul 1999, Joe wrote:
>
>> >As far as the cables, could they be 50-pin scsi cables?
>>
>> They might be but I *thought* they were larger. They are shielded so
>> maybe they just looked that way. They're LONG and seem to be made to go to
>> something outside of the cabinet.
>
>Aha...female edge connectors? That would make sense if the systems are
>similar; my Cadnetix system has long, shielded, external cables for a
>Pertec-interface tape drive.
I think they were card edge connectors but I didn't pay attention to them.
>
>> Mine has an
>> >Adaptec scsi card and two enormous HD's in it (I think 10 meg apiece).
>>
>> It has a large card mounted next to the hard drive. The card looks like
>> it converts SCSI to MFM for the hard drive and an interface for the 8"
>> floppy drive. There is a FH 5 1/4" hard drive in it that appears to have a
>> MFM interface. No idea what size drive it is.
>
>Hmmm. I forget, where are you located? From the dimensions you described,
>and from my experience with my Cadnetix unit (similar size), I'd guess the
>weight of the cabinet to be between 75 and 100 lbs (i.e. cost-prohibitive
>to ship). Otherwise, I'd be really interested to see how close the systems
>were before the companies merged...
I'm in Orlando Florida. You'd probably have to ship it by truck. I
don't think it would cost too much. I think you're right about the weight.
>
>As far as peripherals, I can only tell you how my system is set up: the
>monitor has a long ribbon cable that connects to the rear of the cpu
>cabinet. The keyboard has a modular plug which connects to the monitor,
>and the mouse-systems mouse (identical to Sun3) plugs into the keyboard.
>With mine, I also got a couple of hundred feet of thick-coax ethernet
>cable and a Sperry 286 workstation with a high-end graphics card, optical
>mouse, and 20meg HD. Someday maybe I'll have the time and energy to get it
>working again, hopefully before the components turn to dust...
Hmmm, I didn't see the peripherals but if you you wnat them and can give
me a good description then I may be able to find them.
Joe
>
>Aaron
>
>
>Some questions for TK50 folks...
> 1) Can you operate a TK50 when it is _only_ connected to power?
Pretty much true. There are some states, where if you operate the load
solenoid by hand, you can remove a 99%-already-unloaded cartridge.
> 2) Which is load, button pressed or button out?
Pressed in.
> 3) What are the status modes on the light?
Red light blinking fast = failure.
Red light blinking slowly = rewind.
Green light solid = tape loaded and ready.
Green light blinking = tape moving.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Normally I don't pass on ads I see, but this guy has some unusual old
stuff, some Apple oriented, some just old computer (magazine collections
etc.)
http://bytehead.com/~lnewby/sale/APPLE.txt