Schematic redrawn by Mike Kopack. Parts cost less than $20 for a good
      quality mono digitizer, based on the ADC0804 A/D convertor chip.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 2400    6646  36.1% -lh5- 7662 Jun 27  1992 ADigit.iff
[generic]                 4138    9356  44.2% -lh5- 16aa Jun 27  1992 dtizerdox
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         2 files    6538   16002  40.9%            Oct 13  1992