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SL-15 Unswitched Audio Connection

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rossmickey(at)comcast.net
Guest

Posted: Thu Jul 09, 2015 8:01 am Post subject: SL-15 Unswitched Audio Connection

I have a SL-15 Audio Selector Panel that has two “unswitched” audio connections.  One is hooked up to my AOA warning.  I would like to use the other for the audio of the Advanced Flight System 5600 EFIS I am installing.  The SL-15 uses Molex 08-05-0301 connectors which are discontinued and I cannot find them anywhere.  

 

My three options seem to be:

 

Find someone who has a connector I can purchase (failed so far but maybe one of you has an extra)

 

Take out the connector that is in there for a speaker I am not using and use it.  (Suggestions on how to remove the connector without buying the specified tool please)

 

Hook the EFIS audio line with the AOA audio line which may not work at all if one is loading the wire all the time.

 

Thanks so much,

 

Ross Mickey

N9PT

  [quote][b]

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ARGOLDMAN(at)aol.com
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Posted: Thu Jul 09, 2015 8:35 am Post subject: SL-15 Unswitched Audio Connection

the Molex 08-05-0301 itself is not  a connector but refers to the finger spring contacts. They are , I believe gold  plated and indeed are not available. Newark lists the following  substitutes.

  

  

     39X7518    - Product Range:6838 Series; For Use With:KK 6442, 41695 Series Crimp Terminal    Housings; Contact Gender:Socket; Contact Material:Brass; Contact Plating:Tin;    Contact Termination Type:Crimp ;RoHS Compliant: Yes    
20H0074    - Product Range:6838 Series; For Use With:KK 6442, 41695 Series Crimp Terminal    Housings; Contact Gender:Socket; Contact Material:Brass; Contact Plating:Tin;    Contact Termination Type:Crimp ;RoHS Compliant: Yes    
01E9145    - Product Range:KK Series; For Use With:KK Series Crimp Terminal Housings;    Contact Gender:Socket; Contact Material:Brass; Contact Plating:Gold; Contact    Termination Type:Crimp; Wire Size AWG Min:24AWG ;RoHS Compliant: Yes  

 The connector body , itself is also  available and are listed with the above.

  

  Since they are not gold plated  (with the exception of the 01E9145, if the housing is not appropriate,  I  would use a slight smear of an anti oxidation grease on the connector. The  connector body is readily available. If you look up the below numbers at  digikey, I believe when you look at one of the selections, the bottom of the  description will list what connector bodies are appropriate for that contact.  You just have to do a little detective work.



  

  

  In a message dated 7/9/2015 11:02:34 A.M. Central Daylight Time,  rossmickey(at)comcast.net writes:

  	  Quote: 	
		  Molex  08-05-0301 	


 [quote][b]

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recapen(at)earthlink.net
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Posted: Thu Jul 09, 2015 8:51 am Post subject: SL-15 Unswitched Audio Connection

If I recall correctly, the SL-15 is equivalent to the PS Engineering PMA7000 series (I have one of those).

I'll look to see if I have any additional/spare connectors as I wired mine.  I recall they were on a metal tape and I simply cut off the ones I needed.....

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rossmickey(at)comcast.net
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Posted: Thu Jul 09, 2015 9:04 am Post subject: SL-15 Unswitched Audio Connection

Yes, that is the one.  Thanks.



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ceengland7(at)gmail.com
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Posted: Thu Jul 09, 2015 10:15 am Post subject: SL-15 Unswitched Audio Connection

On 7/9/2015 10:59 AM, Ross Home wrote:

     

      	  Quote: 	
		                         <![endif]-->   <![endif]-->                

I have a SL-15 Audio             Selector Panel that has two “unswitched” audio connections.              One is hooked up to my AOA warning.  I would like to use the             other for the audio of the Advanced Flight System 5600 EFIS             I am installing.  The SL-15 uses Molex 08-05-0301 connectors             which are discontinued and I cannot find them anywhere.           

          

My three options seem to             be:         

          

Find someone who has a             connector I can purchase (failed so far but maybe one of you             has an extra)         

          

Take out the connector             that is in there for a speaker I am not using and use it.              (Suggestions on how to remove the connector without buying             the specified tool please)         

          

Hook the EFIS audio line             with the AOA audio line which may not work at all if one is             loading the wire all the time.         

          

Thanks so much,         

          

Ross Mickey         

N9PT       

       

     	
     Is this it?

     [img]cid:part1.02020807.03010906(at)gmail.com[/img]

     

     If so, and I owned it, I'd solder wires to the edge connector to     make a 'pigtail' connector using a dSub connector, with a strain     relief to protect the wires. Those things are perfect examples of     'Aviation Quality'.

     

     If you have that spare that can be moved, there's usually a little     tab on the back side that prevents it from backing out. If you have     something thin and narrow enough, you should be able to slide it in     from the 'front' (non-wire) end and push the tab away from it's     mating lock point in the shell.

     

     Charlie

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billp(at)wwpc.com
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Posted: Thu Jul 09, 2015 11:14 am Post subject: SL-15 Unswitched Audio Connection

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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Jul 12, 2015 8:35 am Post subject: SL-15 Unswitched Audio Connection

At 10:59 AM 7/9/2015, you wrote:

  	  Quote: 	
		  I have a SL-15 Audio Selector Panel that has two “unswitched” audio connections.  One is hooked up to my AOA warning.  I would like to use the other for the audio of the Advanced Flight System 5600 EFIS I am installing.  The SL-15 uses Molex 08-05-0301 connectors which are discontinued and I cannot find them anywhere.  

  

 My three options seem to be:

  

 Find someone who has a connector I can purchase (failed so far but maybe one of you has an extra) 	


    How many pins are in these connectors?



    That style of connector was received with considerable

    excitement at Cessna . . . waaayyyy back when. For

    a few years, we made up our own audio switching and

    signal routing junction box utilizing the .156 spaced,

    card edge connectors. They were the "Amp Leaf" from

    Amp-Inc. 



     http://tinyurl.com/qbqndka



     http://tinyurl.com/p2dfvfs



    Later, others jumped in with their own offerings

    . . . one of which was the KK series from Molex



     http://tinyurl.com/7t6jjsc



    Cessna got out of that activity after a few

    years in favor of exploiting off-the-shelf

    devices . . . that first experiment into

    rudimentary avionics manufacturing had some

    reliability issues. I wasn't directly involved

    in the engineering gyrations . . . but I got

    to observe it and write about it. There proved

    to be other form-factors for bringing wires

    off pc boards that were a quantum jump in

    reliability for black-boxes on airplanes.



    Nonetheless, King radio, Narco and others

    produced a goodly number of devices with this

    technology. The .156" card-edge has been

    'not recommended for new design' for a very

    long time.



    This poses problems for exploiting the utility

    of these venerable devices. Quite often, extending

    the air-worthiness of these devices goes beyond

    finding pins for adding features. What's a OBAM'er

    to do when the existing connector has degraded to

    one step above trash . . . or worse.



    I've stroked new service life into several devices

    by replacing the crimped pin connector with solder

    flag connectors. Like this . . .



  http://tinyurl.com/nbuab2a



    Unfortunately, not ALL sizes are available but

    with some creative application of time/effort and

    JB weld, you can fabricate a connector of any desired

    size that offers you all new pins. Check out all

    the images in the third link above.



 

 

   Bob . . .    [quote][b]

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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Jul 12, 2015 8:45 am Post subject: SL-15 Unswitched Audio Connection

 	  Quote: 	
		  If you have that spare that can be moved, there's usually a little tab on the back side that prevents it from backing out. If you have something thin and narrow enough, you should be able to slide it in from the 'front' (non-wire) end and push the tab away from it's mating lock point in the shell. 	


    Here's a DIY extraction tool

    for the leaf-style card edge

    connector pins.



  http://tinyurl.com/nknv4bk



    Made this from a pocket screwdriver

    sacrificed to the task while on a 

    field-trip . . . A little creating

    grinding will get you the right dimensions

    for your target connector.



 

   Bob . . .    [quote][b]

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