This board is designed to amplify the head signals on Computer Operations Inc
LINCtape II drive for Saleae Logic Pro 16 analog capture.

headamp_asbuilt - The PCB I made that needed cuts and jumpers to fix incorrect
   initial determination of head pinout

headamp_fixed - The updated design with the fixes I made to asbuilt. Has not
   been made to check.

head - My final determination of head pinout.


Note that channel 1, 7, 9 and being inverted in my code so likely those
channels are inverted on the board.