http://exxosnews.blogspot.com/2017/06/blast-from-past-144-floppy-kits.html (http://exxosnews.blogspot.com/2017/06/blast-from-past-144-floppy-kits.html)
Look last picture there, which is last rev. No more expensive crystal on it.
Knowing exxos (much better after year spent watching his lame questions and posts at his 'forum') , I really can not think anything other except that he was inspired by this:
http://atari.8bitchip.info/autostep.html (http://atari.8bitchip.info/autostep.html)
No credits ? Yeah, that's what I'm talking about .
Maybe he use the internal crystal on eprom chip? dunno..
Quote from: Anemos on 15-12-2018, 00:40:34
Maybe he use the internal crystal on eprom chip? dunno..
LOL . Was it supposed to be a joke ?
Actually, what exists on some EPROM chips is voltage converter, but that's possible to make with silicon . Crystal not.