M. The Crystalline EntityNov 21, 2022

So, after the birdsite migration there are a lot more vintage tech enthusiasts around...

Does anybody have the right 5.25" diskette images for doing an azimuth calibration on an Apple Disk II diskette drive?

I have the "Alignment Aid" diskette, but I need an "Alignment Diskette". Alternative methods to fully re-align and maintain a Disk II drive would also be very helpful. I'm getting I/O errors. I've fully recalibrated one of my drives, verified my diskettes are good, but the other drive was more heavily used and is in worse shape.

Boosts greatly appreciated. I've been looking for awhile.

#AppleII #VintageHardware #RetroHardware #VintageComputing

Show thread48kRAM
@maddiefuzz Unless I'm mistaken, "alignment disks" have a very specially-written magnetic pattern that's not circular and can't be written with a disk ][. I think normally you just find a "known-good" disk and then adjust head alignment for maximum / clean signal using a scope. At least, that's how I've heard it described.
Nov 21, 2022 at 8:51pmWeb
Show threadfenarinarsa Nov 21, 2022
@48kRAM @maddiefuzz That would fit what I saw last week at an Apple II meeting. There's a tool that writes a specific frequency on disk and then you need to plug a scope somewhere to check if the signal is read correctly.