[Elecraft] K3/P3/expert 1.3KA

[Chortek Bob]

I've got the 1.3K with the internal tuner and am very dissatisfied with the capability of the tuner. If I had it to do over again, I would would get the amp WITHOUT the internal tuner. It won't tune certain loads (e.g my beam on the low end of 20 where the SWR is only 2.1/! and on 30 meters with my vertical (same situation), and I also find it there are many occasions where it won't tune down to a 1:1 or close, but stays up around 1.6 which is about the limit the amp will tolerate.  The tuner REALLY needs some work - but then maybe my tuner is defective.  BTW, my KAT 500 had no trouble matching ANY of these conditions.
73,
Bob/AA6VB

      From: Igor Sokolov <ua9cdc at gmail.com>
 To: elecraft at mailman.qth.net 
 Sent: Thursday, January 19, 2017 9:44 PM
 Subject: Re: [Elecraft] K3/P3/expert 1.3KA
   
Not all of Expert 1.3 are sold with internal antenna tuner. There are 
amps without it. If I were in Jerry's situation I would purchase 
internal antenna tuner from Expert for the sake of integration and speed.

73, Igor UA9CDC


20.01.2017 3:20, Jim Brown пишет:
> On Thu,1/19/2017 1:59 PM, Jerry Muller via Elecraft wrote:
>> I am  looking
>> for a Antenna Tuner. I have selected a Palstar HF Auto.
>
> Why an automatic tuner?  The amp has an auto-tuner, and the two are 
> unlikely to play well together. Instead, I'd look at a good manual 
> tuner like the Ten Tec 238. I've owned several of them and find them 
> to be good performers. So did ARRL Labs when they tested them many 
> years ago.
>
> Ten Tec has been sold a couple of times and new 238s are probably no 
> longer available, but used 238s are usually available on the used 
> market. Best bet are the B and C models, which have a vernier readout 
> for the inductor, as opposed to a dial cord in the older models. 
> Expect to pay about $400 for the B or C, $300-350 for the older 
> units.  The 229 is electrically and mechanically the same as the older 
> 238s, but in a cabinet that matches older Ten Tec rigs.
>
> To use this tuner in your station, set the SPE to bypass mode, tune it 
> for the bands where you operate and log the settings. Then put the SPE 
> tuner back in line in auto mode and let the auto tuner do its thing to 
> cover the band(s) as you QSY.
>
> 73, Jim K9YC
>
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