[Elecraft] [K3] A speaker for the K3

[Jim Miller]

Manual tuner - Manual amplifier :

I don't use "tune" unless I am using the internal tuner.  Set your tune
power setting to 4 watts, place your amp in standby, press xmit (xmit only,
not tune) get your tuner properly adjusted, press xmit to release, turn your
power output down to 4 watts, enable your amplifier, place your radio in CW
mode, tune to a frequency CLOSE to where you want to transmit - NOT on top
of other QSOs, use your CW key to cause the radio to transmit, tune your
amplifier and refine your tuner settings, let off the key every few seconds
to not heat up everything, if your are happy with the current settings,
increase your power out slowly as you watch it on each increase until you
have achieved the output power you are looking for.

1 lower your output power
2 Transmit only a few seconds at a time
3 Find an unused frequency - close is plenty good
4 Tune with your radio without any amp
5 When happy, enable the amp
6 Adjust settings
7 Increase power slowly
8 Readjust if necessary.
9 Tune to your target frequency

73, Jim 



-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Joe
Subich, W4TV
Sent: Wednesday, August 27, 2014 9:45 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] [K3] A speaker for the K3


The Optimus XTS-25 is a small "wood cased" ("simulated walnut grain
vinyl") single driver (passive) unit 6 3/4" H x 4 7/8" W x 4 1/8".

I've used one for years as a utility monitor and would really like to find a
half dozen of them for use with various rigs including both K3s.  I've been
using "bookshelf" speakers as suggested by Wayne many years ago - mine are
Sony B1000 (10 1/4" x 6 3/4" x 7 1/4") - $68/pair on Amazon.  Similar
speakers are available from many places at similar prices - for example,
Best Buy (Insignia 5 1/4" 2-Way Bookshelf Speakers" - $60/pair).

I've recently found 3" bookshelf speakers (3.6" H x 3.6" W x x 4.6" D) rated
for 90 Hz - 18 KHz for $19/pair on Amazon that I'm preparing to test an
alternative to the old XTS-25.  See: 
<http://www.amazon.com/Pyle-PCB3BK-100-Watt-Bookshelf-Speakers/dp/B000MCGF1O
> 


Amazon also show a pair of 4" bookshelf speakers (4.8" x 4.8" x 5.2")
<http://www.amazon.com/gp/product/B000MCEL1K> for $28/pair that
looks like a good match to the K3 (and a whole lot less less than
$300/pair <G>).

73,

    ... Joe, W4TV


On 2014-08-27 8:43 AM, Charlie T, K3ICH wrote:
> I don't know of any Optimus speakers that are 45 inches deep.
>
> Several different sizes of Optimus & Radio Shack branded speakers were
> produced over the years that all sound great.  Specifically the two
> sized metal cased units I have are 6½ X 4 X 4 and 7 X 4½ X 4¼.   These
> both at two way speakers having a small tweeter.  The older wooden cased
> one doesn't have a tweeter but is similar in size.
>
> I'm not sure if they're still in production though.
>
> 73, Charlie k3ICH
>
>
> ----- Original Message ----- From: "Gerry leary" <gerryleary99 at me.com>
> To: "Charlie T, K3ICH" <pincon at erols.com>
> Cc: <elecraft at mailman.qth.net>
> Sent: Wednesday, August 27, 2014 8:12 AM
> Subject: Re: [Elecraft] [K3] A speaker for the K3
>
>
> Are you talking about the speakers that are about 4 inches wide about 7
> inches long and about 45 inches deep and I have the screw on bracket?
> The ones I am talking about are not powered but they do some excellent
> for their size
>
> Sent from my iPhone this time
>
>> On Aug 27, 2014, at 5:53 AM, "Charlie T, K3ICH" <pincon at erols.com> wrote:
>>
>> Scour the hamfests and buy a little metal cased, Radio Shack
>> "Optimus", (typically for under ten bucks).  I use them on all the
>> radios in the shack and find them to sound better than of any of the
>> high dollar speakers.
>>
>> 73, Charlie k3ICH
>>
>>
>> ----- Original Message ----- From: "Fred Smith" <mfsj at totalhighspeed.com>
>> To: "'Joe Subich, W4TV'" <lists at subich.com>; <elecraft at mailman.qth.net>
>> Sent: Wednesday, August 27, 2014 5:56 AM
>> Subject: Re: [Elecraft] [K3] A speaker for the K3
>>
>>
>>> Nice little speaker but worth a $100 more than the West Mountain Radio
>>> COMspkr @$39 shipped?? I have found them to be excellent com speakers
>>> and
>>> use them on several of my radios a K3/K2/IC-9100 not matching but I
>>> don't
>>> the room for everything to sit beside all the radios either.
>>>
>>>
>>> 73,
>>> Fred/N0AZZ
>>
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