An inexpensive single device simple amp (no autotuner,
no bells & whistles) could run clean & cool at 600w?
http://www.eham.net/articles/34850
10 dB above 100w at received end?
$200. for the device + associated electronics = under $1,000.
commercial, and under $500. homebrew?
Two devices + upgraded components for full-legal possibly
$1.00/Watt at $1,500 possible?
20dB over 100W at received end?
Or did I mess up the math ... again?
David KD4E
When the SS devices are as easy to use *and* and cheap enough to meet our
current
hollow state device's price point, vacuum tubes will go the way of the
dodo. We're progressing rapidly towards that, but it'll be a while, yet.
REPLY:
In terms of the device itself, that day is already here. The LDMOS
devices from NXP are fully capable of replacing tubes in a legal limit
amp and the price already beats tubes too. A pair of them that easily
puts out 1500 watts is around $400. Compare that to an 8877.
You can be sure designers are working hard to build the circuitry
around them that will soon make tubes pretty much obsolete.
FlexRadio already has a legal limit amp that is awaiting FCC approval
using said devices and they expect approval before the end of the
year.
As with everything, time will tell.
73, Bill W6WRT
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