Separate names with a comma.
Discussion in 'Off Topic' started by mark tomlinson, Feb 9, 2018.
To open a box from JameCo as it was in 1982 (A bit more EXPENSIVE, true...)
And most of those are 'in case we need them' bits for this (at least one we DO need, the rest are as yet ... not all tested. I just hate ordering one 79 cent part) :
Bonus points if you name it
TI 99? lol only thing I can think of in that era
edit: 2nd guess apple 2 but looks like its short a few keys lol
A bit large even for that
Close, but actually pre-dates the Apple II and is just after the Apple I
C1P with the Superboard II
I actually had a C8P that I finally junked years ago since it was in far worse shape and was more complicated to work on. For just restoration it was not worth it.
LOL! Look at that monster!
Amazingly, all 5v TTL logic and all chips are still available today -- even the 1kx4 bit static RAM chips
P.S. and I did get it to boot into Microsoft Basic Just working on a few minor issues. Had to find an old TV with a composite input ... crikey!
That might actually be more terrifying than anything...dollars to donuts its left over stock from that year?
If you zoom in on the 4 medium sized chips on the bottom half next to the keyboard you will note that this is where Basic lived back then
LOL old tech...best tech?
6502 baby, 6502
I had two Atari 800's they were 6502's also, long since gone. wished I still had one of those.
So after replacing all the static RAM and a few other chips and sockets we were stymied by garbage on the display. Some good text, but a lot of garbage. Much fapping about with swapping RAM in and out of the video mapping address, different speeds, etc. Finally took a microscope to the one socket we replaced and darned if there were not a couple of minor trace jumps from the socket rework. Very tiny, not visible without the scope. A razor knife and back in business (three days later). Will boot to the monitor prompt.
Now we are having issues with a number of the keys not responding and it looks like they are just suffering from a case of the 'olds'. Ordered new ones... see what happens if we just swap them all out These are old-skool mechanical ones that are not easily disassembled. With a set of replacements I may try to salvage some of the originals, but that won't be a holding item