Posted By
Retroshire
on 2025-04-07
11:24:37
|  Fun or suicidal hardware experiment?
Hello,
I had fun with this solderingthing. What the heck is it? Well:
Two switches, two 27c512 eproms. one eprom with the low parts of 3-plus-1, scriptplus, calcplus and logo, one eprom with the high parts.
Two switches: one on a14/ gnd, one on a15/gnd and that parallel on both eproms. So with the two switches I can select 4 pieces of the eprommemory in the the two eproms at the same time.
Off course I want to swap these two eproms with the 3-plus1 high/low in my plus/4
@SukkoPera is this survivable or suicidal?
 |
. That's why I designed that adapter I told you about in the first place! 
