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King Molex connectors

 
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Michael Wynn



Joined: 10 Jan 2006
Posts: 145
Location: San Ramon, CA

PostPosted: Fri Jul 05, 2019 12:08 pm    Post subject: King Molex connectors Reply with quote

Hi All,

I am restoring and re-wiring a 1977 Pitts. The radios are a King KY97a and a King 76c. Both have wiring going into a rack and some version of molex pins in a plastic holder at the rear. When wiring my RV8, I was using Garmin radios that all use more standard Sub-d pins and sockets.


I want to replace some wires and add a couple of circuits. I am really unclear about how to remove and replace these pins and where I buy replacement pins.


I also want to put new RG400 for the wires to the antennae. There is a right angle connector, but I am really unsure if I can remove the current antenna wiring and replace them. Anyone with experience dealing with these connectors?


Regards,


Michael Wynn
Pitts S1-S
RV 8
Livermore, CA


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Michael Wynn
RV 8
San Ramon, CA
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cbirdsall6(at)cox.net
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PostPosted: Fri Jul 05, 2019 5:52 pm    Post subject: King Molex connectors Reply with quote

Michael,
You can purchase the pins here: http://lane-pilot.com/25-pcs-BendixKing-tray-contacts-KX155KMA24KX196KN53etc_p_123.html as well as everything else I mention here ...
The extractor is a Molex PN HT-1884. You can make your own - I've done so using a cheap stainless 6" rule on the dollar shelf at the hardware store.  I ground down one end so that it looked similar to the tool in the picture and then carefully sized it to fit into the tiny little slot above/below the pins in the connector. Take a look at the KX 155 Install manual, Page 2-6 - you'll see a picture of the removal tool and the pins.  The pins have a narrow tang that locks into place by dropping into a stepped slot  when it's inserted into the rear of the connector.  The removal tool simply pushes the tang up so that it disengages from the slot. To use it, insert it into the slot above or below the pin (depending on which row you're after) from the front of the connector, give it a little push to disengage the tang and either push the pin out from the front with a blunt tool or pull it out the back using the attached wire. Use finesse, not brute force. It won't come out if the tang isn't disengaged. 
RF connections:  Solder-in style is TED PN 9-30-10 (similar to the original).  It takes a little practice to solder these well.
OR you can go with a Delkin  DBA 600 and not have to solder the whip at all.  Make your antenna lead long enough to reach the back of the tray and crimp on a BNC connector. 
One caution: One row of pins is numbered, the other is alphabetical. The alphabetical row is missing the G, I, O,  and Q. Forget that and you'll get the pins in the wrong place. Been there, done that.
KX 155 install manual is here: http://aeroelectric.com/Installation_Data/Bendix-King/KX155_IM.pdf
Chuck

Quote:
On July 5, 2019 at 3:07 PM Michael Wynn <mlwynn(at)aol.com> wrote:

Hi All,

I am restoring and re-wiring a 1977 Pitts.  The radios are a King KY97a and a King 76c.  Both have wiring going into a rack and some version of molex pins in a plastic holder at the rear.  When wiring my RV8, I was using Garmin radios that all use more standard Sub-d pins and sockets.
I want to replace some wires and add a couple of circuits.  I am really unclear about how to remove and replace these pins and where I buy replacement pins.  
I also want to put new RG400 for the wires to the antennae.  There is a right angle connector, but I am really unsure if I can remove the current antenna wiring and replace them.  Anyone with experience dealing with these connectors?
Regards,
Michael Wynn
Pitts S1-S
RV 8
Livermore, CA






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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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nuckolls.bob(at)aeroelect
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PostPosted: Fri Jul 05, 2019 7:14 pm    Post subject: King Molex connectors Reply with quote

At 08:51 PM 7/5/2019, you wrote:

Quote:
Michael,

You can purchase the pins here: http://lane-pilot.com/25-pcs-BendixKing-tray-contacts-KX155KMA24KX196KN53etc_p_123.html as well as everything else I mention here ...
Quote:

This ebay seller has a little more
attractive offer

https://tinyurl.com/y44o6gr8




Bob . . .


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Michael Wynn



Joined: 10 Jan 2006
Posts: 145
Location: San Ramon, CA

PostPosted: Mon Jul 08, 2019 6:37 pm    Post subject: King Molex connectors Reply with quote

VERY helpful
Thank you.

Michael Wynn --


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Michael Wynn
RV 8
San Ramon, CA
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berkut13(at)berkut13.com
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PostPosted: Thu Jul 11, 2019 7:22 am    Post subject: King Molex connectors Reply with quote

As for an extractor for those pins:

http://berkut13.com/extractor.htm



From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert L. Nuckolls, III
Sent: Friday, July 5, 2019 10:07 PM
To: aeroelectric-list(at)matronics.com
Subject: Re: King Molex connectors

At 08:51 PM 7/5/2019, you wrote:

Michael,

You can purchase the pins here: http://lane-pilot.com/25-pcs-BendixKing-tray-contacts-KX155KMA24KX196KN53etc_p_123.html as well as everything else I mention here ...

This ebay seller has a little more
attractive offer

https://tinyurl.com/y44o6gr8


Bob . . .


- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Michael Wynn



Joined: 10 Jan 2006
Posts: 145
Location: San Ramon, CA

PostPosted: Thu Jul 11, 2019 4:33 pm    Post subject: King Molex connectors Reply with quote

This link is too funny.

Thank you


Michael


--


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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Michael Wynn
RV 8
San Ramon, CA
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