The Brewing Academy Presents
Texas Instruments 99/4a Hardware
Thank you for wanting to order a TI 99/4a SD MultiCart or a 32K RAM expansion!
There are two versions of the TI SD MultiCart”: FlashROM99 & FinalGROM99. Both come in cases. Please read the descriptions for details.
Shipping is $10 for the United States for up to three items
$15 for one item, $20 for two or more for the rest of the world
Payment is via PayPal (https://PayPal.me/TheBrewingAcademy/)
Please read payment links carefully!
Californians must add 8% sales tax.
Here are some easy links:
Shipping to United States (but not California)
32K RAM Expansion: https://PayPal.me/TheBrewingAcademy/49.99
Shipping to California:
32K RAM Expansion: https://PayPal.me/TheBrewingAcademy/53.19
Shipping to Canada & the rest of the world
32K RAM Expansion: https://PayPal.me/TheBrewingAcademy/54.99
The TI 99/4A Flash ROM Cartridge, or FlashROM 99 for short, is a cartridge for the TI 99/4A home computer that allows for running ROM cartridge images stored on an SD card. The FlashROM 99 supports ROM-only images of up to 32K that use the write-to->60xx bank switching scheme. It will not work with programs using GROMs or CRU-based bank switching. The cartridge does not require the Peripheral Expansion Box and runs on both PAL and NTSC consoles. The FlashROM99 does NOT work on QI/version 2.2 consoles.
The FinalGROM 99 supports ROM images, GROM images, and mixed images of up to 1 MB in size that use the write-to-ROM bank switching scheme. The cartridge does not require the Peripheral Expansion Box and runs on both PAL and NTSC consoles, including modified consoles with an F18A. It will also run on v2.2 consoles and enables those to run ROM-only programs.
The cartridge offers some advanced modes that provide RAM and GRAM to programs. It also allows a running program to reload another program from SD card or to dump its state to SD card. All firmware of the FinalGROM 99 can be updated by SD card. The FinalGROM99 comes in a 3D printed case.
32K RAM Expansion
This new accessory for the TI 99/4 or 4A connects to the side port on your computer and allows you to run anything that requires 32k RAM. It operates as is without any modification to the computer or the board. Functionally equivalent to TI 99/4a Sidecar or PEB 32k expansion. It plugs into the sideport of the TI with an edge card connector. It runs off of +5v, using about 5-10mah. There is one configuration jumper to either take power from an external 5.5/2.1mm tip-positive 5.0 VDC power supply, or the TI-99/4A sideport. It will work with your Speech Syntehsizer installed IF you use an external power supply (available separately) OR modify your speech synthesizer to supply power at pin #1.
Many of the newer home-brew cartridge titles also require a 32k expansion and will work with this board. In conjunction with a FlashROM99 or FinalGROM99 cartridge (available separately), you can play 32K games without the need for a Peripheral Expansion Box (PEB) or even a nanoPEB!
It comes in a 3D printed case