dwight elvey wrote:
I have a schematic for the separator used on my Polymorphic
computer. It uses another hard to get VCO chip. It uses
a MC4024, an external charge pump, 96L02 oneshot and
a few more TTLs.
I thought that since it was not pll based, that sort of data separator
was subject to drift (as would a 555 based design?)
maybe I should look at the schematic before commenting - it may have
feedback? i'm having flashbacks to mfm hard disk days.
-brad