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Thread: Kenwood TS-440 Mic Wireing

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  1. #1
    Join Date
    Jun 2004
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    Park Rapids, Mn (EN27)
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    89

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    I would like to wire an ASTATIC 10-DA Mic to my TS-440S
    The Mic has 2 cond. plus the shield. Do I wire the Shield to Pin # 8 or Pin # 7 on the mic plug. Which pins do I wire the white and red wires from the mic too ? Pin #1 and Pins #7 or 8?

  2. #2
    Join Date
    Apr 2005
    Location
    columbus, ohio
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    148

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    N0CIC,
    Pin 7 and 8 are the same ground potential so you can connect one side of the mic element to either. Pin 1 is for the other side of the element. On my TS-430 which is the same I clamp the shield to the backshell of the connector. You are then going to have to come up with a mic switch which will be between pin 2 and ground. AJ8L.

  3. #3
    Join Date
    Apr 2005
    Location
    columbus, ohio
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    148

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    Sorry, I jumped the gun. I was thinking that mic did not have a switch. The shield goes to pin 7 or 8, they are the same ground. The mic wire goes to 1 and the swicth wire goes to pin 2. AJ8L.

  4. #4
    Join Date
    Jun 2004
    Location
    Park Rapids, Mn (EN27)
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    89

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    Which wire in the Astatic Mic. is the Switch lead ?

  5. #5
    Join Date
    Apr 2005
    Location
    columbus, ohio
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    148

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    It should be very easy to find with an ohmmeter. Connect one meter lead to the shield and the other lead to one wire. If it shows infinite resistance press the switch and the meter should read less than one ohm. If there is no change with pressing the switch then you have the mic element wire. Use a good ohm meter so you don't put a bunch of current into the mic element.

  6. #6

    Question

    The Astatic 10DA is very popular as a harp microphone for musicians. #
    http://www.harmonicamasterclass.com/...collection.htm

    K9TOA restores and modifies vintage PA, commercial radio and music microphones for amateur radio usage.
    http://www.k9toa.net/index.html
    http://www.k9toa.net/id1.html
    http://www.k9toa.net/id12.html

    Information provided to Robert McGraw, K4TAX in 2004 for his Astatic 10DA.
    The Astatic 10DA is dynamic microphone and capable of up to a 90 head tilt with adjustable tension.
    http://www.jt30.com/jt30page/oldsite/micids/astid.html

    There is NO Push To Talk (PTT) switch with this mircophone itself -- the PTT is provided by the appropriate Astatic stand or base. #As shown in this photo:
    http://users.pandora.be/oldmicrophon...tatic_10da.htm

    D-104 modifications
    http://kb2ljj.serveftp.com/D-104....ion.pdf

    http://www.eixample.com/ea3wr//d104.html
    For Astatic mics, usual color alignment:
    White - Mic audio
    Shield - Mic Ground
    Blue - Ground (PTT)
    Red - Transmit (PTT)
    Black - Receive (PTT)
    Yellow is N/C or goes to shield

    w9gb



    Nullius in verba

  7. #7
    Join Date
    Jun 2004
    Location
    Park Rapids, Mn (EN27)
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    89

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    So if I am reading this right, the White lead will go to pin# 1, the Shield will go to pin# 7 or 8, and the Red wire will go to pin#2 on the mic. plug that goes into the Kenwood TS-440S.

    Should be a piece of cake, the hard part will be the souldering of the leads to the pins on the new 8 pin plug that I have.
    Thanks for the info

  8. #8

    Thumbs up

    Quote Originally Posted by [b
    Quote[/b] ]So if I am reading this right, the White lead will go to pin# 1, the Shield will go to pin# 7 or 8, and the Red wire will go to pin#2 on the mic. plug that goes into the Kenwood TS-440S.
    Should be a piece of cake
    Do you just have just the 10DA "head" or do you have the entire microphone with the desk stand and PTT bar
    The Astatic heads for their desk microphones usually have a 3 conductor plug - that plugs into a "G" or other Astatic stand.

    I sounds like you MAY have a "G" stand with the 10DA on top?

    HERE ARE THE ASTATIC SCHEMATICS for their STANDS
    http://www.barovelli.com/radio/astatic/astatic.htm

    IF you have a PTT switch -- use you trusty old VOM or DVM to confirm wiring. #IF you do not have a PTT -- then you have to use a foot switch or external button -- like Heil sound offers.

    w9gb



    Nullius in verba

  9. #9
    Join Date
    Jan 2000
    Location
    Commerce MI (Detroit area)
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    8,167

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    I have had my TS440s for about 6 years and never bothered looking up the pins on the mic connector.
    It is totally different than my TS520 and all those tiny pins look like they would be a big pain to solder to.
    The guy I bought it from supplied a hand held mic and it seems to work ok but I don't work much fone anyway.
    73.....JD, FISTS #3853,cc 455,SKCC # 1395,tribune #12,
    Official US Taxpayer

  10. #10

    Default

    The correct mic for the TS-440 ( and most solid -state rigs ) is a LOW impedance (500-500 ohm) mic; the TS-520 uses a HIGH impedance (50k ohm) mic. The 10-DA or crystal D-104 #will work fine un-altered for the TS-520, but probably won't have enough "audio" for the TS-440 without a pre-amp. If your 10-DA is mounted on a stand WITH pre-amp you should be good to go.

    Hope this helps,
    KD5HOZ Billy

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