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Sigtronics Adapter, Extension, and Replacement Cables
Adapter Extension Headset Replacement Headphone Replacement
Adapter Cables
Military Headset / Helmet Adapter — General Aviation Plugs — Straight Cable
Military headset Adapter Cable 900119A
  • Changes the signal levels and impedances of military headsets or helmets to work with general aviation electronics.
  • Converts military headset or helmet with U-174/U plug to General Aviation plugs.
  • Part Number: 900119A - 18 inches
  • Price: $100.00
  • Part Number: 900119C - 48 inches
  • Price: $100.00
Military Headset / Helmet Adapter — U-174/U Plug — Straight Cable
Military headset Adapter Cable 900119B
  • Changes the signal levels and impedances of military headsets or helmets to work with general aviation electronics.
  • Maintains the military headset type U-174/U plug.
  • Part Number: 900119B - 18 inches
  • Price: $112.00
  • Part Number: 900119D - 48 inches
  • Price: $112.00

Note: To change the signal levels or impedances of military headsets / helmets, use one of the 900119 series adapters listed above.

The Headset Adapter Cables listed below will not change the signal levels or impedances of the headset. They are plug converters only. Military headset will not work with general aviation radios without an adapter such as the 900119 series above. General aviation headsets cannot be used in aircraft with military electronics.
Microphone Adapter Cable
Microphone Adapter Cable
  • Use with our M-80 or M-90 Mic when converting David Clark H 10-30 dynamic Mic to electret microphone.
  • 9 inches.
  • Part Number: 800003
  • Price: $18.20
General Aviation Plugs to U-174/U Plug — Straight Cable
P/N 900050 Adapter Cable
  • Converts general aviation headphone and microphone plugs to a U-174/U plug.
  • 18 inches.
  • Part Number: 900050
  • Price: $48.50

Note: There are two common ways a four conductor U-174/U jack can be wired. Our 900050 adapter has a switch in the cable "Y" to accommodate either scheme. If the headset microphone does not work simply move the switch to the other position.
U-174/U Plug to General Aviation Plugs — Straight Cable
P/N 900051 Adapter Cable
  • Converts U-174/U plug to general aviation headphone and microphone plugs.
  • 18 inches.
  • Part Number: 900051
  • Price: $48.50
U-174/U Plug to General Aviation Plugs — Coiled Cable
P/N 900052 Adapter Cable
  • Converts U-174/U plug to general aviation headphone and microphone plugs.
  • 3 - 6 feet.
  • Part Number: 900052
  • Price: $66.80
U-75/U Plug to General Aviation Plugs — Straight Cable
P/N 900062 Adapter Cable
  • Converts U-75/U plug to general aviation headphone and microphone plugs.
  • 18 inches.
  • Part Number: 900062
  • Price: $103.00
U-75/U Plug to U-174/U Plug — Straight Cable
P/N 900063 Adapter Cable
  • Converts U-75/U plug to U-174/U plug.
  • 18 inches.
  • Part Number: 900063
  • Price: $104.00
General Aviation Plugs to U-75/U Plug — Straight Cable
P/N 900064 Adapter Cable
  • Converts general aviation headphone and microphone plugs to U-75/U plug.
  • 18 inches.
  • Part Number: 900064
  • Price: $103.00
U-174/U or U-93A/U Plug to U-75/U Plug — Straight Cable
P/N 900065 Adapter Cable
  • Converts U-174/U or U-93A/U plug to U-75-U plug.
  • 18 inches.
  • Part Number: 900065
  • Price: $104.00
Dual "Y" Microphone Adapter — Straight Cable
P/N 900056 Adapter Cable
  • Connects two headset microphone jacks to one aircraft radio microphone jack.
  • 56 inches.
  • Part Number: 900056
  • Price: $54.60
Dual "Y" Monaural Headphone Adapter — Straight Cable
P/N 900057 Adapter Cable
  • Connects two monaural headset headphone jacks to one aircraft radio headphone jack.
  • 56 inches.
  • Part Number: 900057
  • Price: $40.00
Dual "Y" Stereo Headphone Adapter — Straight Cable
P/N 900058 Adapter Cable
  • Connects two stereo headset headphone jacks to one aircraft radio headphone jack.
  • 56 inches.
  • Part Number: 900058
  • Price: $58.20
Transcom II Auxiliary Audio Input — Straight Cable
P/N 900066 Adapter Cable
  • Adapts stereo source to monaural Transcom II
  • 4 feet.
  • Part Number: 900066
  • Price: $17.60
Transcom II Auxiliary Audio Input — Straight Cable
P/N 900067 Adapter Cable
  • Adapts monaural source to Transcom II. Or use as a patch-cord for Sigtronics stereo systems.
  • 4 feet.
  • Part Number: 900067
  • Price: $14.10
SPO Auxiliary Power Cable
P/N 100043 Power Cable
  • Portable Intercom Power Cable
    For SPO-22, 23, 42, 43, 62, 63, 82, and 102 intercoms.
  • 4 feet.
  • Part Number: 100043
  • Price: $14.10
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Extension Cables
Monaural Headset Extension — Straight Cable
P/N 900053 Extension Cable
  • General aviation plugs, headphone and microphone, straight cord.
  • Part Number: 900053 - 5 feet
  • Price: $44.80
  • Part Number: 900120 - 12 feet
  • Price: $70.20
Monaural Headset Extension — Coiled Cable
P/N 900054 Extension Cable
  • General aviation plugs, headphone and microphone, coiled cord.
  • 3 - 6 feet.
  • Part Number: 900054
  • Price: $62.80
Stereo Headset Extension — Straight Cable
P/N 900069 Extension Cable
  • General aviation plugs, microphone and stereo headphone, straight cord.
  • Part Number: 900069 - 5 feet
  • Price: $54.40

Note: This cable does not have a Key Line.
Headset Extension, U-174/U Plug — Coiled Cable
P/N 900055 Extension Cable
  • U-174/U jack and plug, coiled cord.
  • 2 - 6 feet.
  • Part Number: 900055
  • Price: $65.80
Monaural Headphone Extension — Straight Cable
P/N 900059 Extension Cable
  • General aviation headphone plug, straight cord.
  • 5 feet.
  • Part Number: 900059
  • Price: $26.80
Microphone Extension — Straight Cable
P/N 900060 Extension Cable
  • General aviation microphone plug, straight cord.
  • 5 feet.
  • Part Number: 900060
  • Price: $32.70
Stereo Headphone Extension — Straight Cable
P/N 900061 Extension Cable
  • General aviation stereo plug, straight cord.
  • 5 feet.
  • Part Number: 900061
  • Price: $32.70
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Headset Replacement Cables
Stereo Headset Replacement — Coiled Cable
P/N 800005 Headset Replacement Cable
  • General aviation stereo plug, coiled cord.
  • 3 - 6 feet.
  • Part Number: 800005
  • Price: $51.40

Note: This cable is used on Sigtronics Stereo headsets with the Stereo / Mono switch mounted on the ear cup.
Stereo Headset Replacement — Straight Cable
P/N 800012 Headset Replacement Cable
  • General aviation stereo plugs, straight cord.
  • 5 feet.
  • Part Number: 800012
  • Price: $33.90

Note: This cable is used on Sigtronics Stereo headsets with the Stereo / Mono switch mounted on the ear cup.
Stereo Headset Replacement, With Switch — Straight Cable
P/N 800219 Headset Replacement Cable
  • General aviation stereo plugs, straight cord.
  • 5 feet.
  • Part Number: 800219
  • Price: $44.70

Note: This cable has a stereo / mono switch built-in. It is used on Sigtronics Stereo headsets without the Stereo / Mono switch mounted on the ear cup.
Monaural Headset Replacement — Coiled Cable
P/N 800033 Headset Replacement Cable
  • General aviation plugs, headphone and microphone, coiled cord.
  • 3 - 6 feet.
  • Part Number: 800033
  • Price: $45.20
Monaural Headset Replacement — Straight Cable
P/N 800036 Headset Replacement Cable
  • General aviation plugs, headphone and microphone, straight cord.
  • 5 feet.
  • Part Number: 800036
  • Price: $26.80
Headset Replacement, U-174/U Plug — Straight Cable
P/N 800045 Headset Replacement Cable
  • U-174/U plug, straight cord.
  • 5 feet.
  • Part Number: 800045
  • Price: $30.30
Headset Replacement, U-174/U Plug — Coiled Cable
P/N 800046 Headset Replacement Cable
  • U-174/U plug, coiled cord.
  • 2 - 6 feet.
  • Part Number: 800046
  • Price: $49.00
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Headphone Replacement Cables
Stereo Headphone Replacement — Coiled Cable
P/N 900126 Headphone Replacement Cable
  • General aviation stereo headphone plug, coiled cord.
  • 3 - 6 feet.
  • Part Number: 900126
  • Price: $36.70
Stereo Headphone Replacement — Straight Cable
P/N 800029 Headphone Replacement Cable
  • General aviation stereo headphone plug, straight cord.
  • 5 feet.
  • Part Number: 800029
  • Price: $20.60
Monaural Headphone Replacement — Coiled Cable
P/N 800034 Headphone Replacement Cable
  • General aviation monaural headphone plug, coiled cord.
  • 3 - 6 feet.
  • Part Number: 800034
  • Price: $31.00
Monaural Headphone Replacement — Straight Cable
P/N 800011 Headphone Replacement Cable
  • General aviation monaural headphone plug, straight cord.
  • 5 feet.
  • Part Number: 800011
  • Price: $14.50
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