Jump to content
fabrice montupet

TI(ny)-99/4A Computer

Recommended Posts

I don't know about Amazon, I don't use this company for my shopping. The case is based on the Corsair Carbide Air 240. I made some modifications to install the motherboard especially:
- The lowering of the metalic plan on which the motherboard is fixed, because of the TI-99 cards which are taller than the PC cards.
- Cutting the rear of the case for the 3 TI cards rear access.  
- Making a metalic cage for the two floppy disks drives.
- Cutting front plastic for floppy disks drives access.
- Making a cage for fixing the cartridge connector extender and the cartridge docking.

I must say that these modifications (done cleanly) are time consuming.

  • Like 2

Share this post


Link to post
Share on other sites

Some months without news,  I'm sorry.

In May, two of my suppliers informed me that they couldn't provide me anymore the list of components that I planed to order. In addition,  the price of some IC grew significantly. I remember all the time I spent to find the least number possible of suppliers capable to provide all the components needed and offering NOS high-standard ones at he lower price as possible. I still haven't find the courage to redo the inquire...
Although the V2 motherboard development is ended. During these last months, I have considerably optimized the routing of the 4 layers PCB. Just for fun.
I can just say that the TIn-99/4A v2.6 is working well. I only use it since many months, without compatibility and stability problem.
I have found just one non-working game: Tutankham.

  • Like 9
  • Sad 1

Share this post


Link to post
Share on other sites

I forgot to say that the GROM 0,1,2 Simulator and the Tape controller daughter cards have been finalized and a first batch of them have been produced. The SAMS card has now a low profile format.

  • Like 10
  • Thanks 1

Share this post


Link to post
Share on other sites

Fabrice, on the chips, you might want to check Rochester Electronics. They are an authorized OEM for a lot of discontinued chips from other manufacturers, making certified replacements using the original chip dies once their supply of NOS chips is exhausted. Their prices are usually good on a per-chip basis, but their minimum quantities for a chip are sometimes very high (1,000+). I have an account with them and order a lot of chips that I haven't been able to find from other sources there (and it is good that they only supply certified original chips).

  • Like 1
  • Thanks 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...