lowlevel

Indeed they are big square pins that stretch and ruin the sockets. I have two revisions of this board.. one has bad ram chips (soldered) and the other with socket-ed ram works fine. Made in Brampton Ontario CANADA I believe, but forget exactly... says 'BOT Engineering' on them, 1983.

Yeah, I need a key switch of this type as well.. (hard to see and I have a piece of heat shrink stuffed in there to block the contacts from touching, but same type.)

I think there is a bug in Altirra 3.00 ... I find I have to cold boot a few times, or re-attach the disk etc... eventually the 130 error goes away, but it's always a hassle for me...

I can confirm they did at least for 400/800/XL carts... 2764 in mine.