[GreenKeys] Jackfields

[W2HX]

Following this thread, here is what I did for a jackfield at my shack. Someone very kind on this list (unfortunately I have forgotten who!) found a nice homemade jackfield for me.
http://www.w2hx.com/x/TTY/JackField/IMG_1166.JPG

I then proceeded to make a loop circuit for it. With no plugs in place, the loop is preserved. As a device with a plug is inserted, the plug breaks the loop and inserts itself into the loop. That way I can have multiple devices on a loop, unplug one and the others still function fine.

Here is the diagram:
http://www.w2hx.com/x/TTY/JackField/Visio-tty%20jackfield.pdf
in the end, I have two separate loops on this jackfield. Each with 6 jacks. You can see the wiring and the molex connector that connects to my ST6 here:
http://www.w2hx.com/x/TTY/JackField/IMG_1170.JPG

and whatever else about the project:
http://www.w2hx.com/x/TTY/JackField/


73 Eugene W2HX


From: GreenKeys [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Paul Heller
Sent: Thursday, September 10, 2015 1:45 PM
To: Keith Densmore
Cc: greenkeys at mailman.qth.net; Roy Morgan
Subject: Re: [GreenKeys] Patch cables needed

Nice picutres, Roy and Keith. Interesting that both these gems have two rows of SET and two rows of LPG (and then Keith’s has one more row MISC.

What do SET and LPG mean?


On Sep 10, 2015, at 11:24 AM, Keith Densmore <ve3gem at gmail.com<mailto:ve3gem at gmail.com>> wrote:

Here's a pix of the gem I have. They were available on ebay a number of years ago,  did anyone else grab one?

Keith

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Original Message:
From: Roy Morgan <k1lky68 at gmail.com<mailto:k1lky68 at gmail.com>>
To: Paul Heller <paul0926 at comcast.net<mailto:paul0926 at comcast.net>>
Cc: <greenkeys at mailman.qth.net<mailto:greenkeys at mailman.qth.net>>
Sent: 2015-09-10 10:44:32 AM
Subject: [GreenKeys] Patch cables needed


On Sep 4, 2015, at 9:35 PM, Paul Heller <paul0926 at comcast.net<mailto:paul0926 at comcast.net>> wrote:


I was inspired by Jack K0TTY to build a small current loop patch box,

It turns out that the RIGHT small loop switch box can be VERY versatile.  The Phone company and the military used a small patch box that will do an amazing amour of patching.  See pictures below.  If you EVER see one of these things at a fest, do not pass it up.

 If you are tempted to build one of these yourself, gather the CORRECT jacks and be prepared to do a lot of tedious wiring.

I think i need different panels for audio and current loop because only one seems too small.

Keep them separate, or at least plug- Incompatible.

<TelcoPatchPanel3.jpg>


<TelcoPatchPanael 63C1 Loop Swbd.jpg>

Roy Morgan
k1lky68 at gmail.com<mailto:k1lky68 at gmail.com>
K1LKY Since 1958



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