Whats the negative and positive sides of the receiver for the servos? It's a 2 channel radio.
Thanks

Are you talking about the connector pins?

Different brands will have different orientation. Old Airtronics for example has Negative, Positive, then Signal, & the newer ones Negative, Signal, & positive. (or I think its the other way around)

2 channel - 3, 4 doesnt really give us any clue.

Which RX and Servo do you have?

Photo/s would help.

I have:

AE receiver (From the rc18)
FMT servos (Both have the White, Black, Red)

Thanks

Check this link, it should give you what you need.

http://www.fatlion.com/sailplanes/servos.html

Dan.