The TRAK track buffer?
Now there's a "blast from the past" that usually doesn't get much discussion here (and also apparently didn't sell many drives)...
I've seen several threads here that describe the "memory tricks" used to store sector data for R/W. And those remind me of another one -- the TRAK with its track buffer. (I had an AT-D2 that worked, and think I still have the board from one.) IIRC, it had a 2K memory module for the track buffer. No problem in SD, but on the surface, it is a bit shy of enough
Anyone know of a schematic for these Trak drives?
I think I have an undocumented ROM, Ver. 1.10.
.....and look at pin 20 of the 8031;
.....and this lacks (empty socket) the second RAM chip found in the other drive in this thread.
This was my first drive, 1983, never had any problems until recently. AFAIK, it was purchased new by my parents and has never been opened until now. So it's functioned for 40 years with that bent pin.
