A servo Y cable lets one receiver channel drive two servos at once. This one is only 70mm long and uses the JR colour code: brown negative, red positive and orange signal. The single end is a small servo-style plug that slides onto the receiver's header pins, and the two other ends are receptacles your servo plugs push into. It is the one to choose when both servos sit close to the receiver, so there is no loop of spare lead to tuck away. If your servos sit further apart, our 150mm Futaba-style Y cable reaches about twice as far.
You can use it to run a pair of aileron servos or twin boat rudders from one channel. It can also take power from a spare receiver port for small add-ons such as LED lights. Both servos get the same signal, so they always move the same way. If one needs to move the opposite way, turn it round in its mount, fit a servo reverser on that side, or put each servo on its own channel and mix them on the transmitter. The housings have no key tab, so JR, Spektrum and Hitec leads push straight in, and Futaba leads use the same pin order.
Specifications
Wiring & getting started
Wiring diagramRC receiver
- Switch everything off
Unplug the receiver battery or ESC before you plug anything in.
- Plug the Y cable onto the receiver
Push the plug onto the channel you want with the brown wire on the negative pin. Receivers mark that pin with a minus sign, a battery symbol or GND. Orange then sits on the signal pin.
- Plug in both servos
Push each servo plug fully into a receptacle, brown to brown. On Futaba-coloured leads, black goes where brown goes.
- Check it works
Power up and move the stick for that channel. Both servos should turn together in the same direction. If one moves the wrong way for your model, turn it round in its mount or fit a servo reverser to that side. If neither moves, the plug is on the wrong way round, so turn it over on the pins.
- Tie it down
Hold the joints together with a cable tie or a wrap of tape so vibration can't pull a servo plug out.