Hello David,
Replying to a message of David Batten to All:
 DB> Hi everyone;
 DB> What I need to know is what the sinals that control the servos are. I
 DB> am assuming that two of the three lines are power and ground and the
 DB> third line is some kind of control signal. But what kind? Thanks to
 DB> anyone who can help.
The receiver converts the signal to a voltage. 2.5vt is usually the center 
position. as you move the stick and change the signal, the reciver follows 
the pulse and shifts the voltage either up or down.
Attached to the output shaft in the servo is a pot. It also generates a 
voltage. Within the servo's electronics is a cercuit that compares the  
signal voltage with the voltage the pot produces. That circuit controls the 
transistors that supply motor voltage to drive in the proper direction so 
that the pot voltage will match the signal voltage.
It's been a long time since I worked with those circuits and I hope I 
explained it clearly enough for you.
 Capt. Diesel
--- FleetStreet 1.04 NR
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