Hi Tomek (I assume, this is your name)
> did anybody try hooking up an external joystick to a-174 is it
> possible
You mean: if the original is broken Or use a external joystick (e.g
from a table top game) instead of the original joystick Or in addition
to the original joy stick
Basically it should not be difficult. The problem might be, that
external controllers use individual values for the potentiometer
resistance. Example: I have two simply external joy sticks from an old
video game. They have 40k for the y-axis and 500k for the x-axis. So
these won't fit for the A-174 assumingly. I use them simply connected to
a 5V power line and the centerpin is used as cv out.
If you are able to modify the A-174, it is not too difficult for you to
build a simple joystick module from the scratch.
Florian