• 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.

WTB: S100 Static RAM card

Nama

Veteran Member
Joined
May 22, 2009
Messages
861
Location
New Zealand
Hi all,
I’ve been struggling getting a 64k Dynamic RAM card back up and working in my IMSAI 8080. In fact I’m giving up on the DRAM card in this system and have decided to start looking for a SRAM card that can get the IMSAI up to 56k.

In terms if SRAM cards, I presently have:

2 x Problem solver RAM16 cards - both seem to be working.
2 x 8K RAM cards - both seem to be working.

Less cards generating heat, and putting less stress on the old power supply is obviously best, so I’d be looking for either:

- 1 x 16k SRAM card (for a total of 4 RAM cards (3 x 16k + 1 x 8k) in my system). A PSS RAM16 would be preferred for sake of consistency, but obviously not crucial.
- 1 x 32k SRAM card (for a total of 3 RAM cards (1 x 32k, 1 x 16k + 1 x 8k) in my system)
- 1 x 64k SRAM card that can have the last 8k bank turned off

I would love to hear from anyone with one of the above cards who would be willing to pass it on.

Much thanks for your time.

Best regards

Philip
 
I wish I knew more about S-100, but I do have a couple of SRAM boards from a project I never had time for.
Boards are 32kb, appear new, and made by Motorola/CMS, photos attached:

DSC00011.jpg
DSC00012.jpg
 
Hi,
Thanks for the reply. I'm not actually sure these are S-100 cards.
What makes me think this is that there are no regulators, and the 3 pins at each end of the bus connector are all connected.

Could be wrong of course...
 
Last edited:
Back
Top