Post Reply 
HP48 card PCBs
12-15-2021, 03:32 AM (This post was last modified: 12-15-2021 03:34 AM by GreyUser.)
Post: #4
RE: HP48 card PCBs
I have a 128kb and 512kb card of the stacked board construction shown (actual layout slightly different). It too has the glue logic chips tops sanded/scratched off but I would expect it wouldn’t be too difficult to reverse engineer them.

What info are you looking for? Schematic? Other?
Find all posts by this user
Quote this message in a reply
Post Reply 

Messages In This Thread
HP48 card PCBs - DavidG - 12-08-2021, 08:58 AM
RE: HP48 card PCBs - mfleming - 12-08-2021, 12:32 PM
RE: HP48 card PCBs - DavidG - 12-08-2021, 11:16 PM
RE: HP48 card PCBs - GreyUser - 12-15-2021 03:32 AM

User(s) browsing this thread: 1 Guest(s)