ORIGINAL: BarracudaHockey
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3. Lnewqban as Rock said, you're partially correct and since he was asking about expo I assumed transmitter so I went with the stick pots but you're correct, the servo's have pots as well. When I started it was common to take them apart and clean the servo pots with contact cleaner when they started acting nutty
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As for the BarracudaHockey, check out page 106 of the May Model Aviation
I feel I misled Armody with my response, sorry.
Yes, the transmitters have four potentiometers inside, one for each axis of control.
When we move the sticks, we are turning these potentiometers.
For mode 2 Tx's, we can move two potentiometers at once (the one that controls ailerons and the on ethat controls elevator) if we move the right stick diagonally, like in a coordinated turn.
The attached pictures show a potentiometer and how they are installed inside the transmitter.
The deflection of the stick produces an output signal that can be lineal or exponential, for transmitters that have that capability.
Congratulations on your interview, Andy![sm=thumbs_up.gif]