TG43 signal and the Nec 765

[Dave Dunfield]

>TG43 is mostly a relic signal of older 8" drives.  Not all
>of them used it.  Also it's supposed to be meaningless on read.
>
>I may add that more than a few designers also used demuxed TG43
>to switch write precompensation in DD modes on 8" drives for 
>better data reliability. 

Can you elaborate.?

>Is this for a Cpro Disk-1(A) or something from the ground up?

No, it for my ImageDisk utility, which is a replacement for
TeleDisk with a documented image file format - I want to provide
support for 8" drives that need TG43.

Regards,
Dave

PS: For those on my list - I'm making some last minute changes
    so I won't be sending the update until this evening.
-- 
dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools: www.dunfield.com
com             Collector of vintage computing equipment:
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