Sean 🤷♂️🤷♀️🤷
Unsure what was going on here, but the whole main board appears to be wrapped in foil. The interface connector on the rear seems to have a soldered on L-connector with a button to do "things". This poor thing is going to get a full tear down before I even CONSIDER turning it on. #tandy #trs80 #retrocomputing
The foil layers are definitely intentional. Someone really didn't want EMI. They also didn't want a numpad? #trs80 #tandy #retrocomputing #radioshack
I believe this is a lower case mod. Very cool. Paper label came detached from the EEPROM but is definitely legible. #retrocomputing #tandy #radioshack #trs80
Oh boy ... um ... this mod is surprising to find. An Exatron MM800 in situ. There's a non-zero chance that this this will "just work". #retrocomputing #trs80 #tandy #radioshack
I just did some cursory eyeballs across the Interwebs and it would appear that the MM-800 isn't documented and I'm having trouble finding any information on the expansion card. It looks like it still has a string-floppy interface, so that's wild. #radioshack
Fritz AdalisYou should always challenge your assumptions. "Oh, this aluminum foil is STILL on the machine after this many decades? I wonder how they did that."
Oh ... its glued on. YIKES
Hoping for glu-stick, rubber cement or hot glue as opposed to a spray can glue substance.
Gave it a wipe, gently checked for shorts and opens, applied power and … #retrocomputing #tandy #radioshack #trs80
Comparing the text output of my fairly standard L2 mod 16K Model 1 to this 48K beast. Simple test and I think I have a stuck bit somewhere. Unless the CharGen ROM for this mod is intentionally setting the Underscore modifier here.
Code gleefully cribbed from https://forum.vcfed.org/index.php?threads/trs-80-model-1-with-pound-characters-at-top-of-screen.1246419/post-1361199
