Futaba FP-T6nLK transmitter and FP- R105M receiver help

Started by Karoq
8 replies 7 likes 0 followers Last activity: 8 minutes ago
#9 1
I have tried editing my previous post and it ignores changes!!!!

I wanted to say that some of my RC gear is over 50 years old. I have a few servos that were dismantled from the Wind tunnel at a research establishment which started life in the 1960s, I changed the servo connectors and they make excellent sail winches. Maybe 65 years old and work a treat on my Bella yacht.
Roy
#8 4
@VictorC
Hi victor , I am only using 1 ESC but with a Y harness and it seems to work Ok until I plug in the rudder servo.
I have another ESC which is meant for 2 motors but for some reason it doesn't do anything but flash a red light in its insides.

I'll try your idea about disconnecting the power wire as I need to use the separate radio receiver battery for the rudder servo unless there's another workaround .
#7 7
Hi, all is not lost with 35Mhtz equipment. Just replace the crystals with FM40Mhtz crystals and it will all become legal.
To save any dissent on this virtually all 40 Mhtz equipment coming into the UK was 35mhtz with 40 Mhtz crystals inserted.
I have Fleet equipment bought direct from the shop and served by Derek Olley and his 40 Mhtz Plainsman transmitters are all marked 35 Mhtz at the base.
I would however check on the Tx. battery as it does sound a tad old!

Some of my RC gear is over 50 years old and still works OK.

AS regards cutting wires I suggest a more subtle approach and buy some spare servo leads and insert one between Rx and esc and cut the servo lead red wire
Roy
Liked by hermank
#5 7
@Fogwall
Thanks for that ,

What your saying is its all right to use it for an rc aeroplane but not for a ground /water based craft ?
I think I will have to look for a more modern system . The date on the instruction manual is I think 1987 so a newer one wont go wrong.
Liked by hermank
#3 12
Are you using two ESCs?
If so, the two ESC will each have 3 wires going to the receiver. It is necessary to cut the red wire on 1 of them to power the receiver from the Battery Eliminator Circuit (BEC) and cut the red wires on both of them if you wish to use a separate radio receiver battery.
Depending on your location, using a 35Mz system on a model boat might be illegal.
Liked by hermank
#2 12
@Karoq I hate to be a downer on this: I’m sure others can help on the electronic issues involved, but I think using a 35Mhz set in an R/C boat is illegal. That frequency is for aircraft only. I you’re using ‘old school’ radio (as I often do for old times’ sake) then for ground or water based vehicles it must be 40Mhz, or you can use 27Mhz.

Practically I don’t know if anyone still flies using 35Mhz, but just to be sure…. You might be better using a modern 2.4Ghz set as they’re so cheap these days.
Liked by hermank
#1 15

Futaba FP-T6nLK transmitter and FP- R105M receiver help

I have a Futaba transmitter and receiver which I bought 30/40 years ago for a glow plug rc plane which I built but never got flown . It is a 5 channel @35 mhz machine.

I have started to build a 2ft boat ( My first ) and am fitting twin motors with an ESC. after finding how to wire them up on this website. I have got the motors turning on the throttle channel forward and reverse but when I connect a servo for the rudder channel strange things happen . The rudder servo will not work until I plug in the battery pack for the receiver, ( the motor channel works without the receiver battery pack ) but then the motors start up when I move the rudder stick but the rudder servo just jumps back and forward.

Without the ESC connected the system works all the servos as it should.

Is my Futaba just too outdated for a ESC and that is causing my problems?
Any suggestions gratefully received
Liked by hermank

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