external speakers

[todd ruby-2]

I am trying to install a pair of KLH 970A outboard spkrs to my K3. The back panel of the radio has one ⅛" stereo phone jack. The speakers have a + and - output on each speaker. My question, as dumb as it sounds is, how do I connect the wires from the speakers to the lone ⅛" stereo plug?

thanks

73
todd
WB2ZAB
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[Dick Dievendorff]

I found (and I can't remember where) a molded cable that had a 3.5mm TRS stereo plug and two longish cables with RCA connectors, one for each speaker.  I cut the RCA connectors off.  Look for a cable that you can peel apart all the way to the 3.5mm plug.

You can of course solder this up yourself, but molded plugs seem to survive better at my station.

http://www.showmecables.com/product/2-5mm-Stereo-Plug-to-Dual-RCA-Plugs-1-5-FT.aspx?gclid=CKjLwufY67cCFbGDQgodZHYAmw
http://www.newark.com/jsp/search/productdetail.jsp?SKU=90C0959&CMP=KNC-GPLA&mckv=|pcrid|20115734061|plid|
http://www.amazon.com/electronics/dp/B0002KR1OG
http://www.amazon.com/gp/product/B001UG823K/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=1535523722&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B0002KR1OG&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0HC8G8BNKPEQBK78B1TY
http://www.vpi.us/cable-audio-rca.html

73 de Dick, K6KR

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of todd ruby
Sent: Monday, June 17, 2013 10:52 AM
To: [hidden email]
Subject: [Elecraft] external speakers

I am trying to install a pair of KLH 970A outboard spkrs to my K3. The back panel of the radio has one ⅛" stereo phone jack. The speakers have a + and - output on each speaker. My question, as dumb as it sounds is, how do I connect the wires from the speakers to the lone ⅛" stereo plug?

thanks

73
todd
WB2ZAB
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[K4QE]

Todd,

This will do it for you.  All Radio Shack parts.

One Y adapter -274-375
One audio extension cord - 42-2492
Two audio cables - 42-2434

Plug audio extension cable into K3.
Plug Y-adapter into extension cable.
Plug both audio cables into Y-adapter.
Attach wires from audio cables to speakers.

73, Tony K4QE

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of todd ruby
Sent: Monday, June 17, 2013 1:52 PM
To: [hidden email]
Subject: [Elecraft] external speakers

I am trying to install a pair of KLH 970A outboard spkrs to my K3. The back panel of the radio has one ⅛" stereo phone jack. The speakers have a + and - output on each speaker. My question, as dumb as it sounds is, how do I connect the wires from the speakers to the lone ⅛" stereo plug?

thanks

73
todd
WB2ZAB
______________________________________________________________
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[Don Wilhelm-4]

Todd,

The best way is to build an adapter.  The shell and ring connect to the
right speaker and the shell and tip connect to the left speaker.
Use whatever connectors you want for the speaker end of the adapter, and
build cables to the speakers to match your choice of connectors.  The
"-" terminal of the speakers should connect to the shell of the 3.5mm
stereo plug.

You could eliminate the adapter and wire two speaker cables to the
stereo plug eliminating the extra two connectors, but that means if you
want to move things across the room (or elsewhere) the two speakers are
tied together with the speaker cable.  If that is not a problem for you,
the "-" conductor for both speaker cables connects to the plug shell,
the "+" conductor for the right speaker connects to the ring and the "+"
conductor for the left speaker connects to the tip.

73,
Don W3FPR

On 6/17/2013 1:52 PM, todd ruby wrote:
> I am trying to install a pair of KLH 970A outboard spkrs to my K3. The back panel of the radio has one ⅛" stereo phone jack. The speakers have a + and - output on each speaker. My question, as dumb as it sounds is, how do I connect the wires from the speakers to the lone ⅛" stereo plug?
>

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[Joe Subich, W4TV-4]

The correct answer is:  Both black wires go to the sleeve of
the 3.5mm plug ("ground").  The red wire from the LEFT speaker
goes to the tip of the 3.5mm plug.  The red wire from the RIGHT
speaker goes to the ring of the 3.5mm plug.

How you manage that transition is up to you.  I put 3.5mm plugs
on both my speakers - the left speaker was connected to tip and
sleeve while the right speaker was connected to ring and sleeve.
Both 3.5mm plugs were connected to a "Y" cable (3.5mm stereo male
to two 3.5mm stereo female) which plugged into the speaker jack.

73,

    ... Joe, W4TV


On 6/17/2013 1:52 PM, todd ruby wrote:

> I am trying to install a pair of KLH 970A outboard spkrs to my K3. The back panel of the radio has one ⅛" stereo phone jack. The speakers have a + and - output on each speaker. My question, as dumb as it sounds is, how do I connect the wires from the speakers to the lone ⅛" stereo plug?
>
> thanks
>
> 73
> todd
> WB2ZAB
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[todd ruby-2]

Tony
A very simple and elegant hook-up. I had the speakers working in minutes.

Tnx
73
Todd
WB2ZAB

On Jun 17, 2013, at 2:20 PM, "Anthony Scandurra K4QE" <[hidden email]> wrote:

> Todd,
>
> This will do it for you.  All Radio Shack parts.
>
> One Y adapter -274-375
> One audio extension cord - 42-2492
> Two audio cables - 42-2434
>
> Plug audio extension cable into K3.
> Plug Y-adapter into extension cable.
> Plug both audio cables into Y-adapter.
> Attach wires from audio cables to speakers.
>
> 73, Tony K4QE
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On Behalf Of todd ruby
> Sent: Monday, June 17, 2013 1:52 PM
> To: [hidden email]
> Subject: [Elecraft] external speakers
>
> I am trying to install a pair of KLH 970A outboard spkrs to my K3. The back panel of the radio has one ⅛" stereo phone jack. The speakers have a + and - output on each speaker. My question, as dumb as it sounds is, how do I connect the wires from the speakers to the lone ⅛" stereo plug?
>
> thanks
>
> 73
> todd
> WB2ZAB
> ____________________________________________________________

______________________________________________________________
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