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Buddy-box sockets & transmitter cords

Searchable reconstruction from the former website, shop data and 49 transmitter photographs.

Safety notice: Some transmitters were sold with different socket variants. The archive lists every cord option documented in the historical material. Always verify the actual transmitter before modifying hardware.

ManufacturerSocket / cordTransmitter model

Graupner / JR

mc-10

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

mc-12

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

mc-14

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

mc-15

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

mc-16/20

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

mc-19

Matching historical transmitter cords: JR3.5, Fu3.5

3.5 mm stereo jack, 3.5 mm mono jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Graupner / JR

mc-22

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

mc-24

Matching historical transmitter cords: JR3.5

3.5 mm stereo jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Graupner / JR

MX-12

Matching historical transmitter cords: Fu3.5

3.5 mm mono jack

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Graupner / JR

MX-22

Matching historical transmitter cords: Fu3.5

3.5 mm mono jack

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Graupner / JR

X-3810

Matching historical transmitter cords: JR3.5, Fu3.5

3.5 mm stereo jack, 3.5 mm mono jack

JR3.5 · 3.5 mm stereo jack

1: signal · 2: ground · 3: not connected

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Graupner / JR

Micro 47G

Matching historical transmitter cords: JR4DIN

4-pin mini-DIN socket (JR)

JR4DIN · 4-pin mini-DIN socket (JR)

3: signal · 5/shield: ground

Futaba

8UAP

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Futaba

9ZAP

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Futaba

FC-16

Matching historical transmitter cords: Fu6DIN, Fu3.5

6-pin DIN socket, 3.5 mm mono jack

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Futaba

FC-18

Matching historical transmitter cords: Fu6DIN, Fu3.5

6-pin DIN socket, 3.5 mm mono jack

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Futaba

FC-28

Matching historical transmitter cords: Fu6DIN, Fu3.5

6-pin DIN socket, 3.5 mm mono jack

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

Futaba

FF-7

Matching historical transmitter cords: Fu6DIN, Fu6sq

6-pin DIN socket, 6-pin square socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Fu6sq · 6-pin square socket

1: signal · 2: ground · bridge pins 5 and 6

Futaba

9C

Matching historical transmitter cords: Fu6sq

6-pin square socket

Fu6sq · 6-pin square socket

1: signal · 2: ground · bridge pins 5 and 6

Futaba

FX-14

Matching historical transmitter cords: Fu2.5

2.5 mm mono jack

Fu2.5 · 2.5 mm mono jack

1: signal · 2: ground

Futaba

FX-18

Matching historical transmitter cords: Fu2.5

2.5 mm mono jack

Fu2.5 · 2.5 mm mono jack

1: signal · 2: ground

Futaba

Skysport 4VF

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Futaba

Skysport T4YF

Matching historical transmitter cords: Fu6sq

6-pin square socket

Fu6sq · 6-pin square socket

1: signal · 2: ground · bridge pins 5 and 6

Futaba

T4EXA

Matching historical transmitter cords: Fu6sq

6-pin square socket

Fu6sq · 6-pin square socket

1: signal · 2: ground · bridge pins 5 and 6

Futaba

T6EXA

Matching historical transmitter cords: Fu6sq

6-pin square socket

Fu6sq · 6-pin square socket

1: signal · 2: ground · bridge pins 5 and 6

Futaba

T7CAP

Matching historical transmitter cords: Fu6sq

6-pin square socket

Fu6sq · 6-pin square socket

1: signal · 2: ground · bridge pins 5 and 6

Hitec

Eclipse 7

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Hitec

Focus 6

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Hitec

Laser 4

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Hitec

Laser 6

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Hitec

Optic 6

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

Multiplex

Pico-Line

Matching historical transmitter cords: MPX5, MPX7

5-pin DIN socket (Multiplex), 7-pin DIN socket (Multiplex)

MPX5 · 5-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

Cockpit MM

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

Cockpit SX

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

mc-3030

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

mc-4000

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

Royal EVO 7

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

Royal EVO 9

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Multiplex

Royal EVO 12

Matching historical transmitter cords: MPX7

7-pin DIN socket (Multiplex)

MPX7 · 7-pin DIN socket (Multiplex)

4: signal · 3: ground · bridge pins 3 and 5; a 5-pin plug also fits

Sanwa

RD-8000

Matching historical transmitter cords: Sa5

5-pin DIN socket (Sanwa)

Sa5 · 5-pin DIN socket (Sanwa)

3: signal · 2: ground

Sanwa

VG-400

Matching historical transmitter cords: Sa5

5-pin DIN socket (Sanwa)

Sa5 · 5-pin DIN socket (Sanwa)

3: signal · 2: ground

Sanwa

VG-600

Matching historical transmitter cords: Sa5

5-pin DIN socket (Sanwa)

Sa5 · 5-pin DIN socket (Sanwa)

3: signal · 2: ground

Robbe

Terra Top

Matching historical transmitter cords: Ro5

5-pin DIN socket (Robbe)

Ro5 · 5-pin DIN socket (Robbe)

1: signal · 2: ground

Jamara

Compax 4+1 Trainer

Matching historical transmitter cords: Fu6DIN

6-pin DIN socket

Fu6DIN · 6-pin DIN socket

4: signal · 7/shield: ground · bridge pins 3 and 5

T2M

Pilot 4 FM Pro

Matching historical transmitter cords: Fu3.5

3.5 mm mono jack

Fu3.5 · 3.5 mm mono jack

1: signal · 2: ground

E-Sky / E-Flite

4-Kanal

Matching historical transmitter cords: E8-4DIN

4-pin mini-DIN socket (E8)

E8-4DIN · 4-pin mini-DIN socket (E8)

1: signal · 5: ground

E-Sky / E-Flite

6-Kanal CCPM

Matching historical transmitter cords: E8-4DIN

4-pin mini-DIN socket (E8)

E8-4DIN · 4-pin mini-DIN socket (E8)

1: signal · 5: ground

Walkera

4-Kanal

Matching historical transmitter cords: WK-Cry

Crystal socket (Walkera)

WK-Cry · Crystal socket (Walkera)

With the crystal removed: signal contact; ground through the other contact/charging socket

Walkera

6-Kanal

Matching historical transmitter cords: WK0701-4DIN, WK22E

4-pin mini-DIN socket (WK-0701), 4-pin mini-DIN socket (WK-22E)

WK0701-4DIN · 4-pin mini-DIN socket (WK-0701)

2: WK-0701 PCM signal · 3: ground

WK22E · 4-pin mini-DIN socket (WK-22E)

2: signal · 3: ground