Matthew | McJonesTech
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mcjonestech.com
Matthew | McJonesTech
@mcjonestech.com
23, Vintage Tech Preservationist, Part-Time Idiot

mcjonestech.com for all my shenanigans
seequa.org for my latest research project
Thank you! They’re still works in progress (I think my early Chameleon is having some logic issues but have yet to figure out exactly what) but it was nice to get the name out in the public once again, now I just need to find the desktop models! 😁
October 8, 2025 at 2:08 PM
Absolutely! More than happy to fire one up and see what we can figure out. I’d love to!
September 21, 2025 at 3:38 PM
That’s wild. I am truly impressed you were able to get all this functional and figure everything out so quickly!
September 21, 2025 at 3:12 PM
So I presume you had to set the enable bit on in CGA for that to display?
September 21, 2025 at 3:07 PM
I’ll also try it on the real hardware! I had Flight Simulator running on one of them at the show until it stopped reading disks entirely (still stumped on that one), but that also is a booter game and it seemed to like that just fine.
September 21, 2025 at 3:00 PM
That is awesome! There are no DIP switches on the board, correct, interesting that you’re getting beep codes: I have found when one of these has a problem (ie failing 4164 or an NMI) it force boots and eventually fails out, or doesn’t boot at all. Normally, they just beep a couple times at boot.
September 21, 2025 at 2:58 PM
This is all super impressive!!

The ROM is available at seequa.org/gallery/ch-files for your reference. I have several versions of it, and some of them used more than one ROM chip.
Files - Seequa Chameleon
Resources and Files for the Seequa Chameleon.
seequa.org
September 21, 2025 at 3:33 AM
It was fun chatting with you! You’ll have to keep me updated on any findings you make from my disk and rom dumps!
September 18, 2025 at 2:06 AM
Ohhhh I am very much aware. I took on getting a Chameleon and its younger brother the Chameleon Plus restored a few months ago. At least they labelled every chip. In my very large amount of research I’ve conducted on these, the people that assembled them had never seen a computer before.
February 22, 2025 at 12:34 AM
Have you happened to fix this unit yet?
February 21, 2025 at 8:31 PM