futaba challenger 4 buddy box

[noba]

Hi first of all thanks to all at model flying it means when iv read rcme several times i can find somthing different on the net.
I have three futaba challenger 4 transmitters they do not have a buddy box socket.
Does anyone know where i can get details of how to fit a buddy box socket if i could get a circuit diagram i could do the work myself i m pretty nifty with the old soldiering iron and have built my own recievers ect.
Hoping someone can help
Thanks Dave

[David Ashby - Moderator]

David

Are they older unit's ? My skysport 4 has a trainer socket (round DIN socket on reverse of case)
Newer Futaba TX's use a square socket but (square to round) converter leads are available - just buy or order in a model shop.

You could ring Ripmax service dept afor advice bout adding a trainer socket. You'd need to cut the casing and whilst I'm sure your soldering skills are better than mine I wouldn't trust even the best solder'er in the land to do the job retrospectively.
Transmitters are so cheap these days, just buy a new one.

[Danny Fenton]

I saw a site on the web that showed exactly how to add a buddy port to an old Futaba last week while researching something else, can I find it again now? no......sorry. I will keep looking. The secret is out there I've seen it LOL

[Danny Fenton]

Sorry David, I found the page but it is for a different Tx, you could apply the same technique, if you want the challenge otherwise as David says transmitters are pretty cheap nowadays.

http://www.mftech.de/buchsen_en.htm