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What are the top 10 rarest vintage computer bits you own?

Things can also move from "common" to "rare" if you start collecting accessories. Expansion cards, bags, boxes, etc.
Big agree there. I don't have a whole lot of stuff that's in-box, but I do have a few that have come with manuals, external number pads, even sometimes just having the original charger for something that uses a really weird plug can feel special. I don't really have anything super rare or sought after (maybe my rarest would be a working recapped PowerBook 100?), but how many people out there have a WinBook 486SLC-25 with the original 4-pin DIN charger, manual, and packing slip with the factory config info? That's not really special by any means (it's not even a good laptop), but it's probably pretty "rare". A bit more special might be my Compaq Deskpro 286 which I have with as far as I know all the original documentation and system disks. A PowerBook 5300c isn't rare, but how about one with the proprietary max 64MB RAM upgrade? Hard to say.
 
Some of my things...
Apple /// with hard drive and monitor ///
Apple //c+
Heathkit HERO robot
PS/2E
TRS80 model 1 complete system
IBM S36 desktop
128k mac in box.
Laser 128
IBM 9595 optioned out with matching 3511 expansion unit.
 
the only interesting things i own are a strobe data ISA PDP11 coprocessor with a J11 CPU and an MCA P/390 :)
 
The rarest system I own is a one off Brother desktop publisher thingy with the printer portion removed and can be used as a dumb terminal for dumb terminal stuff. which its Communications program. I haven't seen another of these as yet so it must be RARE!!!IMAG0066.JPGIMAG0065.JPGIMAG0061.JPGIMAG0057.JPGIMAG0050.JPGIMAG0069.JPGIMAG0056.JPGIMAG0054.JPG
 
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Admittedly, most of what I have isn't particularly rare, just uncommon. But I do have a few bits that might make the cut.

1) A 1969 Micro-Switch Keyboard. I have no idea what it came from, as I was never able to identify the board. But it feels really nice to type on. Maybe I'll figure something to hook it up to someday.

2) An Alspa ACI-2. Currently sitting in pieces, but near as I can tell, I have all of them. A the moment the PSU is with a friend who's trying to reverse engineer how to fix it.

3) An iCot ICOBUS 757-14 Terminal. I know next to nothing about it (other than it works).

4) An original Quadlink Apple II ISA Card. All I have is the card, so I haven't been able to test it. But I did stick it into my 5150 and it didn't short out or anything, so that's a good sign. Eventually I'll be sticking it into my 5160, but I haven't gotten around to it yet. Also, I need to find the software.

5) An original Apple IIe card with the original unobtainium Y Cable! Not sure how rare the actual card is, but that cable... seems to be near impossible to find now-a-days. Currently it's installed in my Macintosh LC III. Works perfectly, and yes, I have the software for it.

Not sure if they're particularly rare, but others listed them... so:

6) A Macintosh IIfx. Missing it's hard-drive, but it works all the same.

7) An Apple ][ Rev 4 board. It's fully functional, and had been using it as an "original" Apple ][, but I swapped it for a Rev 2 board. Unfortunately, I still have a ][+ sticker and serial number on the bottom.

And just to round it out... Not rare, but uncommon:

8) A Commodore VIC-20 with original PET-style keyboard. Works perfectly and is my preferred VIC.

9) An Amiga 500 with "Chicken-lips" keyboard.

10 A TRS-80 Model III with original high-res graphics board installed.
 
Similar to DistantStar, i wouldnt say any of my machines are rare per se, but some of them are uncommon here in the UK, partcularly these ones:

Atari Falcon
Sharp X68000 XVI HD
NeXTCube 040
Sam Coupé
 
1) A 1969 Micro-Switch Keyboard. I have no idea what it came from, as I was never able to identify the board. But it feels really nice to type on. Maybe I'll figure something to hook it up to someday.

Nice! Is it hall effect SW or magnetic reed? The earliest Micro Switch I have is a keypad with 1SW11 switches from 45th week of 1970.

8) A Commodore VIC-20 with original PET-style keyboard. Works perfectly and is my preferred VIC.

I always wanted one of those. With the prices now, I might as well just get a PET.

9) An Amiga 500 with "Chicken-lips" keyboard.

What exactly is a "chicken-lips keyboard"? Do you mean the Cherry MX black version?
 
chicken lips means the early a500 cases with embossed c= and the keyboards that had a c= and Amiga key (rather than two Amiga keys).
 
The "rarest" machine I own is probably the Wang Series 700B, especially the program tapes that came with it as they seem to be written for that machine (a series of calculations on a heat reject and heat recuperation for a water treatment plant) plus some (hand written) documentation on those programmes. (Yes... this needs to be backed up and saved... No, I have not found a good way of doing that.)

After that I guess the MAI Basic Four 310 minicomputer with matching terminal.

The rest are a bunch of common and sligthly less common portable computers with various CPU's.
 
chicken lips means the early a500 cases with embossed c= and the keyboards that had a c= and Amiga key (rather than two Amiga keys).
Well, there are at least 4 types of A500 keyboard, NMB "space invaders", Cherry MX black, and two variations of Mistumi. Maybe you have either NMB or Cherry. My A500 has C= on the case, but it's Mitsumi.
 
I own a Gemini Galaxy 2 computer but no keyboard. However on the back there is a label "Gemini Galaxy 1, serial # 00439". So what is it? 1 or 2?

I haven't tested it yet. I got it because I need floppy drives. It looks ok inside.
 
I used to own an Exidy Sorcerer 2 too, but when I decided to move to another house, I trashed it. I heavily regret that now. The prices asked nowadays are insane.
 
I just got a Frank Hogg Labratories Eliminator cartridge for my Tandy Color Computer 3. I'm not sure how rare it is, but it's the only one I've ever seen for sale.
 
Hmm... never really thought of it.
Some things that come to mind....

1) Compucolor 8001
2) PDP-8/e with core memory
3) HP-9100 programmable calculator
4) Unbuilt Altair 680 mint in box
5) Digital Group Z80 system with quad phi-decks, Ham board, and Vortrax

-J
 
I guess it's my Toshiba EX-80 trainer board, from 1978. It's somewhat interesting because it's the only trainer board I've ever seen that has a built-in video output. It's 80x26 (dots, not characters).

The rest below are pretty common: clockwise from upper left they are the NEC TK-80, MITEK MP-85, Toshiba EX-80 and NEC TK-85.)

PXL_20241108_054419988.jpg
 
I would say:
  • Spanish P2U (2 units remaining, of which I own one)
  • IBM System/23 Datamaster (a complete 5322 and the logics of a second unit that has to arrive)
  • SAGA PBS-800 (three units worldwide so far, of which I own one)
I have also more rare equipment for the zone I am, but that may not be rare for other regions.
 
I own one complete Exidy Sorcerer mk2 revision A3 now again. And a second Exidy Sorcerer mk2 revision A3 only the main board and a power transformer. Both don’t work yet. They may be rare in the USA but not in the Netherlands. Many were sold here.

I also tested the Gemini Galaxy 1 or 2 computer and found a sticker that it doesn’t function. Thats correct. But it nice to have a lot of parts to exchange with the Sorcerers.
 
For me, it's a couple of Sinclair ZX80s and two JR-100U computers - None of them really that rare.

I have some cool stuff, but still can't find some of the pieces I want like an Issue 1 ZX Spectrum.

So nothing before 1980... Not even a Tandy or an original Apple II. :(

Though one zx80 has a very nice zx81 upgrade that looks factory installed and the other is original.

And I have an IBM that with an IBM asset sticker - so an IBM IBM... OK, that's not that rare I imagine, but I thought it was cool.
 
Anything purchased from eBay in the last 5 years is automatically rare, right? :)

For us it would probably be Basic/Four stuff, IBM System/32, a Rack from a BBN ARPANET node, and IBM tape cylinders from DRD "beehive" robotic tape library. Maybe the Tandon PAC 286, anyone else have one of these? We also have a couple of "small" electromechanical PBXs from Leich and Automatic Electric that I have never seen anywhere else...

Great thread!
 
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