Tandon TM 100 5 1/4" drives

"Bill Sudbrink" <bill(a)chipware.com> said: According to my Tandon OEM Operating and Service Manual for the TM100-1 and TM100-2: Tracks per inch 48 TPI both drives Tracks per drive TM100-1 40 tracks, TM100-2 80 tracks Disk Rotational Speed 300 RPM +/- 1.5% Motor Start Time 250 milliseconds Motor Stop Time 150 milliseconds Seek Time,track to track 5 milliseconds Head Settling Time 15 milliseconds Ave Track Access Time 75 milliseconds Typ. Recording Modes FM,MFM,MMFM Data Transfer Rate 250,000 bits per second Unformated Cap. TM100-1 250Kb per disk, TM100-2 500Kb per disk Bill, Let me know if you need a copy of this. Thanks again for the C4P boot disks. The C4P-MF is coming along nicely. The power supply checks out and I'm pulling every socketed chip and reseating it during the cleaning. So far, I've found 5 chips with pins broken down inside the sockets. Fortunately, I was able to remove the pins from the sockets. Now I just need to pick-up some replacement 8T26 bus driver/receivers and then check all of those 2114s on the two 527 Ram boards and I'll be ready to fire this thing up. :) --Doug ==================================================== Doug Coward dcoward(a)pressstart.com (work) Sr. Software Eng. mranalog(a)home.com (home) Press Start Inc. http://www.pressstart.com Sunnyvale,CA Curator Analog Computer Museum and History Center http://www.best.com/~dcoward/analog ====================================================