• Please review our updated Terms and Rules here
  • From now on we will require that a prefix is set for any items in the sales area. We have created regions and locations for this. We also require that you select a delivery option before posting your listing. This will hopefully help us streamline the things that get listed for sales here and help local people better advertise their items, especially for local only sales. New sales rules are also coming, so stay tuned.

California Intel iPDS portable CP/M-80 computer - ICE and EPROM programmer

Covers: California
gslick said:
Do you mean the module expansion adapter, or the SBX-251 bubble memory module?

The module expansion adapter doesn't look like it is too complicated. Two 8259A interrupt controllers and 18 common 74LS TTL parts, and a few passives. Maybe the more difficult part would be the getting an accurate reproduction of the mechanical aspects and the connectors. Have you done any similar reproduction projects?

http://www.bitsavers.org/pdf/intel/iPDS/pictures/

View attachment 1277664
Click to expand...
Yes, the SBX module adapter board. I have schematics, I just need to get the physical dimensions to reproduce. Yes, I have done reproduction boards before.
Thanks
Craig
 
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 put your hands and eyes on a physical board, so if Craig is able to actually get access to one, it will be help the quality and efficiency of the reproduction effort.

I've also been thinking about reproducing some of the iSBX modules themselves. For example, iSBX-331 the numeric coprocessor could be a fun little side project. I don't know what I'd do with it. Maybe do a math demo on the iPDS just for fun.

Scott
 
smbaker said:
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 put your hands and eyes on a physical board, so if Craig is able to actually get access to one, it will be help the quality and efficiency of the reproduction effort.

I've also been thinking about reproducing some of the iSBX modules themselves. For example, iSBX-331 the numeric coprocessor could be a fun little side project. I don't know what I'd do with it. Maybe do a math demo on the iPDS just for fun.

Scott
Click to expand...
 
It looks like I had actually started a iSBX-251 bubble board sometime before I made the one for the SBC-85 platform. I think i decided to make the SBC-85 version rather than the iSBX version. But as you pointed out they are both nominally the same as the bubble engineering kit.
 
You must log in or register to reply here.
Back
Top