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006
Joystick Replacement
The joysticks used in games and modelling contain two poten-
tiometers with a resistance of about 100 k
a combination of a fixed resis-
tor and a preset, since it can
be a time consuming job to
determine the correct values;
this is because each of the
resistors affects the other.
(024064-1)
R1
, which turn
through 60 to 90 degrees. In fact only one third to one quar-
ter of the total resistance is used in these potentiometers. The
diagram shown here should be used when making your own
joystick with ordinary potentiometers that turn through 270
degrees. The values for R1 and R2 are given as guidelines only
and their optimal value should be found through trial and
error. It will be easier if you temporarily replace R1 and R2 with
P1
25k
lin.
R2
024064 - 11
7-8/2002
Elektor Electronics
25
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