Originally posted by Rcpilet
Rather than buy an expensive Isolator for a plane, I've been investigating cutting the bridge in the reciever.
I would like to run a 4.8V pack for the reciever and a 6V pack for the servos. While this can be accomplished with an Isolator; the gadget costs about $80.
Anyone have any experience with cutting the bridge in a reciever? I'm talking about a JR R600 or a Hitec 555 reciever.
Is it true that I can run a seperate pack for an individual servo by using a Y-harness and simply cutting the positive lead on the reciever end of the plug; thereby preventing the current from passing through the reciever, and only allowing it to run to the servo? My understanding is that you simply cut the positive lead and heat shrink it for protection and then plug the servo and battery into the two ends of the Y-harness. Will this work?
If I can get by with using the Y-harness, then there will be no need to cut the bridge in the reciever. I have one HUGE servo for my rudder on a large plane. I would like to run a dedicated pack for this servo if possible. But, I don't want to spend $80 to accomplish the end result.
The reason that I'm even thinking about doing this is because I've got a rediculously tail heavy plane here. I'm mounting elevator servos (2) in the tank compartment and mounting throttle servo (JR517) on the outside of the firewall. A single or multiple battery packs will be mounted in the tank compartment as well. Tank is mounted just forward of the CG and will need a pump on the backplate of the engine(ballast).
Some would say, "Just put lead in the nose and fly the sucker."
I'm more into experimenting with "usable" weight and strategic locations for ballast.
Thanks
Ballast, ballast, ballast.
Nothing comes cheap if you want to get it right.
http://www.geocities.com/roger_forgues/batteries.html