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			MFJ1270 TNC  to various Rigs.
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                             5 PIN DIN PLUG
                             FRONT    VIEW
                             --------------

                  2----------------O
                  5-------------O     O-------------4
                  3-------------O     O-------------1


This is a crude illustration, but I hope it proves helpful.

73, Alan




TNC                   YAESU 4 PIN

PIN 1                 PIN 2
PIN 3                 PIN 3
PIN 4                 SPEAKER +
PIN 2                 PIN 1



TNC                   YAESU 8 PIN

PIN 1                 PIN 8
PIN 3                 PIN 6
PIN 4                 SPEAKER +
PIN 2                 PIN 7



TNC                   YAESU FT-208

PIN 1                 PIN 1
PIN 3                 PIN 3
PIN 4                 PIN 2
PIN 2                 PIN 4



TNC                   YAESU FT-x09

PIN 1                 Small Tip (*)
PIN 3                 Small Tip
PIN 4                 Large Tip
PIN 2                 Sleeves



TNC                   YAESU FT-x3

PIN 1                 Small Tip (*)
PIN 3                 Small Tip
PIN 4                 Large Tip
PIN 2                 Sleeves



TNC                   YAESU FT-727

PIN 1                 Small Tip (*)
PIN 3                 Small Tip
PIN 4                 Large Tip
PIN 2                 Sleeves


(*)=Some Yaesu HTs key the transmitter
    by completing the ground connection     on the microphone.
    If your HT is one that is noted
    above, consult an MFJ manual or
    the manufacturer for advice.

(x)=Designates 'any number'. For
    example 'x3' could be 23 or
    33 etc.


TNC                  ICOM 4 PIN

PIN 1                PIN 1
PIN 3                PIN 2
PIN 4                SPEAKER +
PIN 2                PIN 4



TNC                  ICOM 8 PIN

PIN 1                PIN 1
PIN 3                PIN 5
PIN 4                SPEAKER +
PIN 2                PIN 6,7



TNC                  ICOM HTs

PIN 1                Small Tip (*)
PIN 3                Small Tip (*)
PIN 4                Large Tip
PIN 2                Sleeves


(*)NOTE: Some Icom HTs key the trans-
         mitter by completing the
         ground connection on the
         microphone. If your HT is
         one that is noted above,
         consult a manual or the
         manufacturer.


TNC                  KENWOOD 4 PIN

PIN 1                PIN 1
PIN 3                PIN 2
PIN 4                SPEAKER +
PIN 2                PIN 3,4



TNC                  KENWOOD 5 PIN

PIN 1                PIN 1
PIN 3                PIN 2
PIN 4                SPEAKER +
PIN 2                PIN 4,5



TNC                  KENWOOD 6 PIN

PIN 1                PIN 1
PIN 3                PIN 2
PIN 4                SPEAKER +
PIN 2                PIN 6



TNC                  KENWOOD 8 PIN

PIN 1                PIN 1
PIN 3                PIN 2
PIN 4                SPEAKER +
PIN 2                PIN 7,8



TNC                  KENWOOD TR-2500

PIN 1                Large Tip
PIN 3                Large Sleeve
PIN 4                Small Tip
PIN 2                Small Sleeve



TNC                  KENWOOD x600 (*)
                             x1xx (*)
                             x15  (*)
                             x5   (*)

PIN 1                Large Ring
PIN 3                Large Sleeve
PIN 4                Small Tip
PIN 2                Small Sleeve

(*)NOTE: SMALL 'x' designates any
         number. For example, x600
         could be 2600 or 3600 etc.

         Also note that the x1xx,
         x15, and x5 are TH series.