Recent content by smbaker

@Hugo Holden , are there schematics or Roms for this acia board? Is there a scan of the manual anywhere?

I remember lots of those. I used one of those norton books so much the spine wore out and the pages came loose. Good stuff.

I went on my paper tape adventure a few months back picking up a FANUC PPR from eBay. Needed some repair, but they make good units, relatively modular and includes a punch, reader, and printer. FANUC A13B-0117-B001 is the part number and there are several on eBay right now (one for $400 but...

Next up I'm thinking about building a disk controller based on the RM65 disk controller. Used a WD27xx instead of a FDD17xx controller. I know there's the AH5050 ROM that uses the commodore disk drives, but a built in disk controller sounds cool. You know, it'd be nice to have an EPROM...

I'm getting really tempted on that monitor.... :D I had some success patching BASIC and FORTH tonight to locate their variables after the display adapter's variables, so I don't have to play any tricks with manually changing addresses. I also sent off for the revision on my board, correcting a...

Thanks Hugo. I actually managed to figure out all the relocation addresses between the binary that Jörg send me and yours, so I can relocated it anywhere I want now. Interestingly, the screen variation tables differs slightly. Maybe one version rounded up whereas the other version rounded down...

I'm going to have to look into the ramrobber. Not aware of that one. :) The IC count is 17 ICs I count your board at 25 for the board and another 3 for the adapter. Most of the reduction came from me using a couple GAL22V10D to replace all the simple logics (ANDs, ORs, NOTs, XORs, etc). I have...

I think I can claim a measure of success! It's not perfect (three bodge wires on the back of the pcboard due to silly mistakes), but it's working! Below is a picture of the board, which I think could be made a little smaller:

@Hugo Holden and @yogi63 I just finished soldering up my board and I realized .... I don't have a copy of the ROMs anywhere? I could use both the character generator ROM and the program ROM. Do you happen to have a copy I can use? Thanks, Scott

Craig is the person who with his projects originally inspired my interest in bubble memory! We've had a few chats over email about reproducing the multimodule adapter. I think we're both convinced it can be done, given the schematics, pictures, etc. There's often no substitute of being able to...

Bummer. I had high hopes that you had a stash of those boards.

Thinking about Hugo's monitor... Discussing over PM... :) dfnr2: My case has pretty much nothing in it except the AIM65 board itself. I have designed a small backplane to fit inside and a video board. We'll see how it goes. I did break and list the customer software that is installed in it --...

For my latest project, a Rockwell AIM-65, I needed to program some 2532. I made a 2532 to 2732 adapter, but my fancy modernTL866II USB programmer just wouldn't have anything to do with it. Not even with me supplying the necessary 25V programmer power myself. So what did I do? I switched on the...

The AIM-65 computer I bought arrived, and it's kind of an interesting piece. It came in this snazzy metal case: The three switches on the front aren't connected, don't even have wires attached. There's also an IEEE-488 connector on the back, which has never been used, no wires ever soldered...

This is a standard 0.100 pitch edge card connector, or something wonky? I was thinking of just building myself a small backplane. Given that I only intend to install one board, inside the case, I was just going to replace the inverting buffers on the board with noninverting, and do away with the...