TJBChris | CoCo 3: Programming A Custom Program Pak @TJBChris | Uploaded August 2021 | Updated October 2024, 19 hours ago.
Let's make a custom Program Pak for my Tandy Color Computer 3! In this video, I add a second socket to my Experimenter's CoCo Cartridge (by Ian Mavric, see link below) and then burn a copy of Tetris for the Tandy Color Computer to a pair of 2764 EPROMs and test the new "custom Program Pak" in my Tandy Color Computer 3.

Links:
Experimenter's CoCo Cartridge Board from Ian Mavric (scroll down): http://members.iinet.net.au/~ianmav/trs80/cocos.htm

Music: The Machine Assembly
(Taken from the YouTube Audio Library)

If you like to jump around, here's the index:
Intro (0:00)
The Experimenter's CoCo Cartridge Board (0:31)
Materials (0:47)
Adding the second socket and capacitor (2:30)
Erasing the EPROMs (4:14)
Picking a ROM to burn (4:51)
Getting the ROM ready (5:29)
Programming the EPROMs (6:39)
Trying it out (9:41)
Outro (11:21)

I do these videos unscripted, so I apologize if the in-the-moment descriptions of things are a bit all-over-the-place. If you have any questions/comments about this video, you can find me in any of these fine locations:

The CoCoTALK! Discord Server
The TRS-80 Color Computer (CoCo) group on Facebook
The CoCo Crew Podcast group on Facebook
On the Vintage Computer Forums (vcfed.org)
The TRS-80 Models I-4/4P Group on Facebook
Tandy / Radio Shack Model II /12 / 16 / 16B / 6000 Owner's Group on Facebook

Thanks for watching!