Buddy Box Connections

Note: All connections viewed looking at transmitter or behind plug.

The list of models is not full as new models are released all the time.

Futaba (FM)

Conquest FM
FG FM
4VF, 6VA, 6VH, 6DA
6YF, 6YG, 6XA, 6XAs
6XH, 6XHs
7U, 8U, 9Z

Futaba Old Style (AM)

FG Series, FP-T7FG
FP-T6FG, FP-T5FG
FP-T4FG, FP-T4FN
FP-T5FN, FP-T6FN

Futaba New 6 Pin Square

 
Futaba 9, 9C
6EXA
 

Cirrus (FM)

900FM

Cirrus (AM)

Four-XL, Six-XL

Tower Hobbies

System 3000 4FM, 6FM
 

Hitec

Focus 4, Focus 6
Laser 4, Laser 6
Flash 4, 4X, 5, 5X
Prism 7, 7X
Eclipse 7

JR

3.5mm Mono Jack
Quattro, F400
F400EX, XF421EX
XF622, XF631
XP642, XP652, XP662
XP783, XP8103
10 Series
 

Airtronics

Radiant RD6P, RD6H
RD6000 Series
Vanguard Series
VG4R, VG6DR, VG6H
VG400, VG600

Sanwa

Sanwa VG400

MPX Picoline

8 pin DIN. 
A standard 180° 5 pin DIN can be used. The connection between pins 5 and 3 powers up the coder only with the transmitter switch off. 

Digifleet, Omega

This works for the Omega range transmitters. Earlier transmitters require modification to add the pin 4 connection.