Typical micro servo

Standard servo

When you move the sticker on the transmitter, a signal is transmitted to the helicopter receiver. The receiver will recognize the appropriate channel so that the correct servo is activated. Movement of the servo arm is accomplished by means of a small electrical motor and gears inside the servo casing.
Because a servo plays an intricate part in controlling the helicopter, it is very important that all servos are in proper working condition and of high quality.

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