hi,
I want to control 3 or 4 heavy duty servos from only one channel of my rc system means they all have to move in same direction, how it is possible?
reply asap,
thanks a lot

Which radio do you have ?

You get combined servo extensions ..like 4 servos ultimately have one wire which you will plug in the respective channel.. But I don't know where they are available (might get it on hobbyking)

Something like this will serve your purpose;
http://www.hobbyking.com/hobbyking/store/__29284__Servo_Splitter_Lead_1_Female_to_5_male.html

guys i want something like which will only take signal from receiver and control it from its own power.  just like example if i connect these servos to one channel of receiver using servo leads  extension cable then these all heavy servo will get power from my receiver power system this will cause high current flow form my reciver and this may burn my receiver so to prevent high current flow through my receiver i want help so guys plz help me if u have any idea.
thanks a  lot

Connect the signal and ground wire from the receiver to the servo and the red wire(power) to the supply...but make sure you have a common ground between the signal and power!

  Himadri Roy it seems helpful but i m confuse that it really works?

Why it wont work?

It will work, have done similar thing in my RC car, as Arduino's power supply wasn't enough to power my twin motors and servos.

If you have little electronic tech background,  I suggest that inside these servos you have pot,(Potentiometer) that gives sense of its Arm limits, you have to remove 2 pot from 2 servos, dont remove,  just remove the soldered 2pins, out of 3 leg just raise it and disconnect it, then take servo 1 pot connection and solder the same way as in pot 1, using 3 core wire, which you can remove from discarded comp mouse, or keyboard, these wires are good flexible,  thin and can fix your needs, hope you have same make servos, ...the first pot sensor will sense all 3, other connection remains same, chk the pin 1,2,3, these connections are made on PCB where pot was soldered and not on Pot pins, these removed pot pins remain open,  positive and negative are common to all 3....cheers

Problem solved buddy..I bought a new servo. .
I request admin to lock the topic