[Elecraft] [OT] Re: KPA1500 First RF Review

Dave B g8kbvdave at googlemail.com
Sun Dec 17 08:19:52 EST 2017


On 15/12/17 22:14, Wes Stewart wrote:
> Here's your 3500 watt amp, listing Elecraft compatibility:
> http://www.kojinsha.jp/kl-1en/
>
> Only $10k and possibly a visit from the FCC!
>
> John AE5X
> https://ae5x.blogspot.com
>
>
>> What! 3500 watts out?!?! How is that possible?

Easy when done correctly, & NOT by using a SO239 socket on the output!

That thing should have a 7-16 connector at least on the output.

I don't see any mention of any automatic protection against high VSWR or
other woes that'd damage the tube and/or tuning networks.

Dave G0WBX.

PS:  that power level is very do-able all solid state these days, and
with very much higher power's too!   But...  You'd need an equally
expensive harmonic filter bank, to keep it clean "on air".


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