[TenTec] KPA 500

Ron Castro ronc at sonic.net
Thu Feb 24 11:39:15 PST 2011


I talked to a manufacturer who makes commercial SS amplifiers, and they do 
have one that is bullet-proof, auto-tune for 1.5 MHz to 30 MHz, 1.5 kW which 
is designed for military and short-wave broadcast.  It's rack mount and only 
a few rack-units. ...and it only costs $30,000!  Wow, such a deal!

            Ron  N6IE
       www.N6IE.com

----- Original Message ----- 
From: "Rob Atkinson" <ranchorobbo at gmail.com>
To: <tentec at contesting.com>
Sent: Thursday, February 24, 2011 10:04 AM
Subject: [TenTec] KPA 500


> Big difference between designing a rig to operate on only one
> frequency like a broadcast rig and designing a solid state QRO box
> that will operate from medium wave up through VHF and make it plug and
> play idiot proof.
>
> rob
> K5UJ
>
>
> <<<Tubes are still a good way to go for high power, but it's true that
> there isn't
> much profit in the ham amplifier market.   The price and durability of 
> solid
> state devices will improve and make them more viable in the future, just 
> as has
> happened in the broadcast industry.  Just a few years ago, SS amps for FM
> broadcast didn't make financial sense over 3 kW, but now they do for power
> levels up to the 20-40 kW level.  AM broadcasters went SS a long time ago 
> and I
> don't think there are any vacuum tube units being sold in the 50 kW or 
> lower
> levels.  The same will happen for HF ham radio...it will just take 
> time.>>>
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