>One thing that I don't understand is the requirement for solid state.
If the request is to run from 110v and produce legal limit from 1.5 -
30 mhz, why not go tube and a switching power supply? That could be
done and be rugged and light weight (probably not for $1/watt though).
The real weight is in the power supply anyway with either solid state or
tube. Paul
Not sure but I think, the real cost of the whole thing is going to be
the PS also.. for 140A or so, it would be in the neighborhood of $600.
But, make it a 110-220VAC amp and it would likely be down to close to
the cost of $1/W. point is, you can run it off mains at base and thru
an inverter from an Optima battery pack of 900AH+ blue or yellow
batteries. You can buy a lot of inverter for just 250$ vs a PS.
I have an offer of 1100$ for a kw but I would have to add a PS. I have
done a lot of looking for PS but as we all know, there are PS and there
are PS. Some or most of them are totally worthless as RF purpose
equipment power supplies.
How would you be able to go tube without a selector coil much like that
on a Dentron Tuner??? and then the band circuitry about every 20 meters
or less??? iow, probably about 8 taps and slug tuned coils, etc ???
Obviously I do not know what I am talking about here and I freely admit
that but... even with continuous tuning, there is the problem of
ruggedness, etc. Ability to stand marginal electric supplies in the
field, bouncing in the back of an Excursion while operating into a nice,
wide banded screwdriver antenna, etc.
A lot of things to consider Paul, but I really think that the SS is the
way to go EXCEPT for the huge power supply to feed those pills or
Mosfets or whatever.
thanks
chas/k5dam
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|