It’s the actual raw magnetic field changes encoded in the platter.
It matters because lots of floppy setups had “anti copying” setups which played tricks on readers, or where degradation over time means the peaks and valleys of 1/0 can become less pronounced.
Thus getting at the core flux can help with retrieval and fixing
Although half of the awsomeness is that lack of hardware, I did make up some PCBs to adapt FluxEngine to various 8" floppies. Mostly not tested yet. I have some of each of the different kinds of drives but haven't finished the project of fabricating nice drive enclosures and power supply hookups, and of course getting the drives to work at all.
I've learned about Greaseweazle in some previous thread here on HN,
bought it, and had a really good time browsing through some of my old
Amiga floppy collection. It works really well.
7 comments
[ 2.8 ms ] story [ 24.6 ms ] threadIt matters because lots of floppy setups had “anti copying” setups which played tricks on readers, or where degradation over time means the peaks and valleys of 1/0 can become less pronounced.
Thus getting at the core flux can help with retrieval and fixing
http://cowlark.com/fluxengine/
Just stick a pin header directly on an off the shelf fpga dev board and that's the hardware done.
https://photos.app.goo.gl/aDKggy7UAHsyLj717
Although half of the awsomeness is that lack of hardware, I did make up some PCBs to adapt FluxEngine to various 8" floppies. Mostly not tested yet. I have some of each of the different kinds of drives but haven't finished the project of fabricating nice drive enclosures and power supply hookups, and of course getting the drives to work at all.
github.com/bkw777/FluxEngine_Kit
https://github.com/jfdelnero/HxCFloppyEmulator
I've learned about Greaseweazle in some previous thread here on HN, bought it, and had a really good time browsing through some of my old Amiga floppy collection. It works really well.