[GreenKeys] Patch cables needed

[Jack]

Keep the panels separated so you don't patch the loop into an audio 
input. I use a "computer" RJ45 panel for audio.


-----Original Message-----
From: GreenKeys [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Paul Heller
Sent: Friday, September 4, 2015 8:36 PM
To: Gary Oliver <go at wa7shi.us>
Cc: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Patch cables needed

Are you guys talking about audio or current loop or both? I was inspired by Jack K0TTY to build a small current loop patch box, but would like to build something more grand that has the ability to switch both audio and current.  This way I could switch audio from my computer or radio to different TUs and current loops from TUs to teletypes.  I got a panel that needs some work and have been trying to figure out the overall design. I figured I’d make my own patch cords.  I think i need different panels for audio and current loop because only one seems too small.  Would love to hear what you guys are doing. 

Why would we need (or not need)  shielded for this application?

Paul
W2TTY

> On Sep 4, 2015, at 2:27 PM, Gary Oliver <go at wa7shi.us> wrote:
> 
> On 09/03/2015 12:55 PM, Keith Densmore wrote:
>> Greetings,
>> 
>> 
>> I am attempting to get operational a TTY patch panel. I am in need of 
>> perhaps a half dozen patch cords. These have male phone 1/4 inch 
>> plugs on each end and can be from about 6-18 inches long. I would 
>> prefer old style phenolic but plastic would do in a pinch. If you 
>> have some, or know where some might be obtained please let me know. 
>> On the same subject, I could also use a couple of 'dummy' plugs, ie  no connections.
>> 
>> Thanks, 73,
>> 
>> Keith
> 
> Am looking for same, and found something you might be interested on surplussalesccom:
> 
> http://www.surplussales.com/Connectors/Aud1-4-3.html
> 
> The cable named "(WAA) 845-2X-PP" is close to what you want (24 inches, though.)  It uses some military-grade connectors (pl-55 / pb-055j) equivalent (machined brass with screw lugs, I believe.)  If you google the NSN, it appears to be a proper 'patch' cable for signals (such as speaker, phones, relays, etc.)  It does NOT appear to be shielded. Other cables on this page ARE shielded, so make sure you choose the right ones.
> 
> At $8.50 per cable (5+) it appears to be a bargain.  Don't know what they charge for shipping.
> 
> -Gary
> 
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