[Elecraft] Linear thoughts

Gary K9GS garyk9gs at wi.rr.com
Fri Mar 17 20:20:09 EDT 2017


A lot of great suggestions but two I have not seen discussed:

1)  I really like the idea of a separate power supply simply because if 
the amp has to ever go in for service or be shipped it is a lot easier 
without a heavy power supply inside the cabinet. Just send the RF deck 
to Elecraft.

2)  I like the idea of an optional INTERNAL tuner.  Makes it nice and 
clean for those that need a tuner without a rats nest of Y cables, etc.  
If there is going to be an external tuner make it weatherproof so you 
can put it OUTSIDE.

I would love a 1.5K+ amp with a K3 type legal limit tuner I can put outside.



On 3/17/2017 6:59 PM, Fred Jensen wrote:
> The "KPA1500" should look, feel, and behave like a KPA500.  OK, it can 
> weigh a little more but should be liftable by your average age ham 
> [oldish].  If you want to sell it widely, the "KAT1500" will also be 
> needed since there are a whole bunch of folks who have less than 
> monoband stacks on all bands, but it needs to be either an internal or 
> external option, some won't need it.
>
> Fans should make no noise whatsoever, even on high speed.  Rated for 
> 100% duty cycle to accommodate RTTY, JT65, and 75 meter AM looong 
> transmissions.  It shouldn't cost more than 3 times a KPA500, same 
> $/watt.  It should accept higher VSWR's than the KPA500, say maybe 
> 3:1?  A plus would be operation on a 20A 120V circuit and/or a sagging 
> generator.  Needless to say, full perfect QSK at 110 WPM, zero IMD, 
> and be able to eliminate TX phase noise if used with some notable 
> non-Elecraft transmitters.  An LCD display for a trapezoid pattern to 
> assure linearity would be a plus but not essential since it's going to 
> be perfectly linear anyway.
>
> Very tough market to enter, and potential customers can be so very 
> fickle.
>
> 73,
>
> Fred ("Skip") K6DGW
> Sparks NV USA
> Washoe County DM09dn
>
> PS:  Before blood pressures rise, paragraph 2 is a feeble [very] 
> attempt at some humor based on passages on this list.  A deep breath 
> or two would be best.  I believe paragraph 3 is true however, and I 
> really want to see Elecraft stay in business.
>
>> On Fri,3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
>>> Folks, if we did introduce a 1500 W solid state amp similar to our 
>>> KPA500 in operation, what features etc would be important?
>>
>
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-- 
73,

Gary K9GS

Greater Milwaukee DX Association: http://www.gmdxa.org
Society of Midwest Contesters: http://www.w9smc.com
CW Ops #1032   http://www.cwops.org

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