Solid state amplifiers have their advantages. I for one like the fact that
they are inherently wide band and can typically operate from 1.8MHz to 50MHz
into 2.5:1 vswr without tuning. To me, on the air tuning (especially in pile
ups) is extremely obnoxious. They also have the potential to be much
lighter, more compact, and less expensive than tube amps. As soon as devices
are developed that can run directly off of rectified line voltage (and
they're getting close), power supplies for these will be cheap and very
light weight. Very high efficiency is also possible with envelope
elimination/restoration techniques and the like. Solid state devices also
outlast tubes. Linearity is not quite as good but still plenty good enough.
I'm excited about the potential for this technology.
Dave
K0QE
----------
From: measures [SMTP:measures@vcnet.com]
Sent: Tuesday, February 15, 2000 12:48 PM
To: John T. M. Lyles; AMPS
Subject: Re: [AMPS] interesting SS amps
? If the radio world had been using solid-state amps since the very
beginning, and a small company in San Bruno announced that it had
developed a much more efficient, HF linear-amplifying device that
operated from 22kV at 45A (the 8973 tetrode), that operated in
high-temp enviorens, what then? Would the electron-tube be hailed
as a
monumental technical breakthrough?
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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