[Elecraft] high-power tuner

[Eric Swartz - WA6HHQ, Elecraft]

10:1 SWR at 500w equals the same internal antenna current and voltage in 
the tuner for about a 3:1 SWR at 1500W :-)

73,

Eric
---
www.elecraft.com


On 2/24/2012 11:59 AM, Gary Ferdinand wrote:
>
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-
>> bounces at mailman.qth.net] On Behalf Of Jim Brown
>> Sent: Friday, February 24, 2012 12:59 PM
>> To: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] high-power tuner
>>
>> On 2/24/2012 8:57 AM, Gary Ferdinand wrote:
>>> [The Palstar BT1500A] is not spec'd for 1500 continuous, so forget
> RTTY/etc and beware full
>>> power tune-ups.
>> Few power amps are rated for1.5kW continuous.  Yes, there are a few,
>> like some Alpha models.  Most are rated for 1.5kW intermittent duty, and
>> should be de-rated by a few dB for keydown modes.
> My mistake, I guess.  I run an Alpha 9500.  A true 1.5 kW tuner is important
> to me at least.
>
>> The Ten Tec tuners I mentioned fall into that category too -- indeed,
>> there are a few fixed caps that will release smoke when run at 1.5kW
>> into some loads for long periods during a contest, but those caps are
>> easily replaced with parts rated for more current, and the replacements
>> are not expensive.
> Good to hear. But if a tuner is advertised to handle 1500 W, it should do so
> without user mods.
>
>> Folks should be more patient with Elecraft -- they are well known for
>> taking enough time with engineering both at the design and manufacturing
>> stage to produce a product we'll be happy to own, as Wayne's recent post
>> in this thread clearly illustrates.
> The original poster talked about 1500 W.  Is Elecraft considering such a
> tuner?  That would be new (and great!) news to me.  For some reason I was
> under the assumption it would handle around 500 W.
>
>
>
>
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