Originally my plan was to use endless-loop cassette tapes (a
real headache), and automobile cassette players. Fortunately
for me, with the passage of time and the advent of MP3 play-
ers, installing 20 separate sound tracks became much easier.
The MP3 players need an amplifier and speakers in order to
use them on the layout, instead of the headphones that they
were originally designed for.
Searching the Internet, I found cheap computer speaker sets
available online. The sets include a small right speaker with the
on-off switch and volume control. The left speaker is attached
by a cable to the right one. The sets come with a wall outlet
adapter, so no batteries are required. Also, the sets include a
small sub-woofer approximately 3 inches in diameter.
For most applications I chose not to install the sub-woofer
because of space requirements and the additional wir-
ing required. Exceptions are the steel mill, coach yard, and
2: Here are the components that come with each set.
2
