I'm putting some feelers out in the Amiga community to see if there is any interested in a bit of possibly rare Amiga 500 tower hardware.

In a nutshell, I have all of the parts needed to build an Amiga 500 Plus tower system with 4 or 5 Zorro slots, a video Slot, and Dataflyer RAM and Dataflyer SCSI boards.

Basically it's an Amiga 500+ motherboard and a VERY rare backplane board that plugs into the side socket of the motherboard that provides several Zorro slots AND a video slot.  There is a little daughter board that plugs in under the Denise chip with a cable that runs to the backplane providing the interface for the video socket.  I believe this makes it possible to use a Video Toaster or Genlock as well as a flicker fixer such as the one on the Picasso IV.  I don't recall off hand precisely how many Zorro sockets there are, but I believe there are at least 4, possibly 5.

I also have what I believe to be a Dataflyer SCSI controller and a Dataflyer RAM board which provides some 30-pin SIMM sockets.  It is fully populated but I also have some spare SIMMs I could include.  These boards were plugged into two of the Zorro sockets on the backplane and worked perfectly.

All of this hardware was mounted in a huge tower case and powered by a single AT power supply with some custom power cable adapters.  I have since removed all of the internals from the tower case and trashed the tower and power supply with the intention of some day mounting it in a more modern and smaller chassis but I never got around to it.

I haven't used this system in years.  I did power it up about 3 years ago to make sure it all worked before I disassembled it and everything did work properly at that time.

The A500+ motherboard was purchased directly from a supplier as a brand new replacement board when the system was originally built.  It includes the 512K trap door upgrade as well.  The clock battery was removed from the motherboard from day 1 to prevent any potential for leak disasters.  The clock was powered by a remote lithium cell which was trashed with the chassis, but someone could easily install a new NiMh replacement battery or just use a new remote lithium cell.

I believe the kickstart ROM is the stock 2.x that came with the Amiga 500+.  I used to have a rom switching tower with the 1.3 rom as well, but I think that is long lost.

I will be taking some pictures this week to show what all this hardware looks like.  I may also attempt to power it up to make sure everything still works, but I no longer have an Amiga mouse, keyboard, or monitor so the best I would be able to do would be to verify a kickstart screen comes up on my TV.

The only thing I'm not sure of is I honestly can't remember how the keyboard interfaced.  I think I had a regular Amiga 500 keyboard mounted in a home made case with a cable that plugged into the rear of the tower.  I'll take a closer look and get a little more info on that when I take the pictures.

To sum it up, here is a list of the parts:

 - Amiga 500 Plus motherboard
 - Amiga trap door chip RAM upgrade
 - Backplane board + Denise daughter board with interface cable
 - Dataflyer SCSI board for A2000 (works in backplane)
 - Dataflyer RAM board for A2000 (works in backplane)
 - AT power supply adapter cables (allows you to power everything with an AT power supply)
 - Western Digital 9-gig 50 pin SCSI hard drive (noisy but works fine)
 
Any ideas what all this stuff might be worth?  I'll most likely end up putting it on ebay but I could use some idea as to value.  If anyone wants to make an offer I will also consider it.  I would be willing to ship world wide if the price was right and assuming the buyer covered the cost of shipping.

Regards,
Dieter

Any ideas what all this stuff might be worth?

The A500 plus is worth about £5, maybe £10 on a good day here in the UK (So thats $10 us, maybe $20)
The trap door ram upgrade isnt worth anything unless its something special, like the PC emulator board or fast ram.
The dataflyer would have been £20 ish but prices are going up a bit of late so maybe £35 ($40-70)
The ram board isnt worth much at all, although its nice that it uses 30 pin simms over ZIP and DIP chips, probably £10 ($20) if it sells
AT power adaptor: dunno really, £2?

The actual backplane is interesting, try and find a makers name and look it up at amiga.resource.cx
Things like the Bodega Bay are collectable
It could be a Micronik A500 I guess, although the story doesnt fit

The backplane looks nothing like any of the the bus expansion boards on that page.  Also, mine was sold specifically for a tower conversion, not an external expansion.  There is no brand name on it, but there is a note silk screened on it that says something to the effect of "Dedicated to yadda yadda".

I'll try to post pictures tonight.

NOTE:

It is _NOT_ the Micronik A500 (6720).

It does look sort of similar, but mine is bigger and has 5 Zorro slots and no ROM sockets.  Mine also has a connection for a FAN and some other connections for things like external parallel, external video, external keyboard, etc.  It also has a Denice daughter board with a cable that runs from the Denice socket to the backplane to make the video slot on the backplane a fully capable video slot for boards like a Toaster.

10 years ago i almost buy a bodega bay for my a500. I think maybe you have that hardware.

Glad I didn't know about that 10 years ago or I'd never have switched to an A2000 and then 3000.

Bumped for more pictures.  Should I just put all this up on ebay?

Most, if not all of it is TTL.  It would be cake to implement in FPGA with the exception of interfacing to this older 5v hardware requiring a bit of low voltage logic to 5v buffering.

In my opinion, it would be easier to XRAY the board to see the inner layers (assuming it has them), adapt the drawings for SMD, and stick with the discrete TTL design but use newer SMD parts.

Or just buy mine.

Furthermore, what is the potential upgrade capacity of this board?  Could an A2060 be used in the CPU slot, for example?

Of course, if you mean Blizzard 2060 - as I have here in my A500T:
http://www.amiga.org/gallery/index.php?n=1801