Kraft Disk Notcher
Remember these? Long ago there was a time that we used floppy disks that were actually floppy. The 5.25 inch disks is what most households had who had computers with disk drives. The common format was a singled sided 5.25 inch 180K disk.
5.25 inch floppy disks had a hole along the side that when covered acted as a mechanical write protect when this hole was covered. This notcher would put a hole in the flip side of the disk so the drive would think you were working with an unprotected disk when you flipped it over. In effect you now have 360K to work with on a single disk.
Floppy disk manufactures didn’t tell you that the single sided disks they were selling actually were double sided disks. These manufacturers eventually came out with the statement that the flip side often contain manufacturing errors. I had no problems on the flip sides when I used this device.
It became unnecessary to use this device once you upgraded your hardware to a double sided disk drive.
Tags: floppy disk, Timberline