#.....#...                                          .#.#.#.###
#....##...                                          #######...
#...#.#...                                          ......#..#
#..####...                                          .....##.#.
#.#...#..#                                          ....#.####
###..##.##                                          ...###....
..#.#.##..                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 .###.####.
##.##.#..#                                          #..##...#.
.##.###.#.                                          #.#.#..###
#.##..####                                          #####.#..#
##.#.#...#                                          ....###.#.
.#####..#.                                          ...#..####