...####.#.                                          #..###...#
#..#...###                                          .#.#..#..#
.#.##..#..                                          #####.##.#
####.#.##.                                          #....##.##
....####.#                                          ##...#.##.
....#...##                                          #.#..###.#
#...##..#.                speed hole                ####.#..##
.#..#.#.##                *****.****                ....###.#.
.##.#####.                                          ....#..###
##.##....# turn  your walkman like a turtle.  there ....##.#..
#.##.#...# might  be  something  there  that  looks #...#.###.
###.###..# like a screw  hole but  it  could  be  a .#..###..#
...##..#.#               speed hole.                .##.#..#.#
#..#.#.### the  rule   is  if   you  can't  get   a .#.###.###
.#.#####..  reasonably small screwdriver in there,  .###..##..
.###....#.          it's not a screw hole.          .#..#.#.#.
.#..#...##                                          .##.######
###.##..#.                 # usage #                ##.##.....
#..##.#.##                                          ..##.#....
##.#.####. use  the  speed  hole like a  screw hole #.#.###...
#.####...#      but with a tinier screwdriver       .####..#..
###...#..#                                          ##...#.##.
#..#..##.#                 # this #                 ..#..###.#
.#.##.#.##               # adjusts #                #.##.#..##
####.####.                 # the #                  ###.###.#.
#...##...#               .# pitch #.                ...##..###
.#..#.#..#                                          ...#.#.#..
.##.####.# some  cassette players have speed screws ...######.
.#.##...## but no holes for them.  to get  to those ...#.....#
####.#..#. screws  you   need  to  dissasemble  the ...##....#
....###.## whole   thing.   could   be   worth   it #..#.#...#
#...#..##.                                          .#.####..#
.#..##.#.#                                          .###...#.#
###.#.####                                          ##..#..###
...####...                                          ..#.##.#..
...#...#..                                          ..###.###.