[BC] SS versus thermionic finals

[Glen Kippel]

Yes, if some terrorists loft nukes from tramp trawlers off both of our
coasts, using noting more elaborate than easily-obtainable Scud missiles, we
would be back to a stone-age pattern of living almost instantly.  Don't
forget, even if you have a tube transmitter, you better have tube audio
processing, tube STL's and a tube board, too.  Not to mention, all the
listeners better have tube radios.  Oh -- and most cars won't work either,
not to mention phones, ATM's etc.  Have a nice day!


On 2/22/07, John Lyles <jtml at losalamos.com> wrote:
>
> Interesting discussion, really a variety of opinions on it. The Harris DAX
> 1 kW DSP PWM transmitter is about $17K delivered.
>
> I wonder if people worry about this anymore: Lightning susceptability and
> EMP
>
> SS transmitters require active or passive lightning protection on the
> output, whereas tube finals don't, due the nature of the design having high
> voltage DC already.
>
> EMP. Solid State transmitters don't have a chance with this. Of course,
> the days that we worry about USSR dropping the bomb here are gone. But the
> chances of an airborne explosion of a nuclear device, can generator
> horrendous impulse. Tube finals survive it, SS don't. Its a given. Hardening
> can be applied, as the military has done, but significant cost added.
>
> Just another thought to factor in besides cost alone.
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