30
means you cannot install the crystal the wrong
way round.
Figure 1.1: Crystal
This crystal is a standard 27 MHz receiver crystal
for model sports; its frequency is shown on the
crystal tag. It is possible to change the frequency
of the submarine to another channel in the 27
MHz-range by changing both mini-sub and
transmitter crystals. This will allow the
simultaneous operation of several submarines
together each on a different frequency. You can
purchase 27MHz crystals at any model hobby
shop or your point of purchase.
After installing the crystal please read the mini-
sub instruction manual very
carefully following the
instructions exactly. This will
ensure the correct pre-use
preparation and avoid
damage due to
incorrect
operation.
Figure 1.2: Position
of the crystal holder