Posted by
David Cutter on
Jun 01, 2007; 4:54pm
URL: http://elecraft.85.s1.nabble.com/Solid-State-Amps-tp448434p448440.html
>From a purely manufacturing point of view, it's a lot easier to make a solid
state amplifier, particularly with surface mount parts and flow soldering on
a production line. Thousands can be made with high accuracy and
repeatability and that alone reduces a major cost centre which is the
manufacturing labour. Cheaper, more reliable devices and magnetics come
close behind but I think design has to be more clever and equipment in the
design process is more expensive to ensure stability. However, an rf
transistor is the fastest fuse on 3 legs ! It's a lot easier to let the
smoke out.
David
G3UNA
----- Original Message -----
From: "Lee Buller" <
[hidden email]>
To: "Elecraft Reflector" <
[hidden email]>
Sent: Friday, June 01, 2007 3:01 PM
Subject: [Elecraft] Solid State Amps
>
>
>
> When I attended Dayton this year and reading the magazines, I see there is
> now a great interest in solid state amps.
>
> I thought that these amps were...well...not as efficient as tube amps thus
> not being attractive to hams. I guess we wanted BIG iron for an amp.
>
> Ameritron has two amps out for quite some time...the 500 and 600 with the
> 600 now coming with a switching PS. It seems people who own the 600 watt
> model like them very much.
>
> Even "E" has the contesters contest amp and it is solid state. So, what
> has changed? Have the SS Amps gotten more efficient? Higher voltages?
> What effects the efficiency of these amps where now there seems to be a
> market for the Japanese and the Italians.
>
> Now most radios provide 100 watts output using transistors and the tube
> finals in rigs have long been gone. So, is this just a natural evolution
> of amplifiers or is some new technological breakthrough happened in high
> powered solid state amplifiers?
>
> Lee - K0WA
>
>
>
> In our day and age it seems that Common Sense is in short supply. If you
> don't have any Common Sense - get some Common Sense and use it. If you
> can't find any Common Sense, ask for help from somebody who has some
> Common Sense. Is Common Sense devine?
> _______________________________________________
> Elecraft mailing list
> Post to:
[hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>
http://mailman.qth.net/mailman/listinfo/elecraft>
> Help:
http://mailman.qth.net/subscribers.htm> Elecraft web page:
http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to:
[hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help:
http://mailman.qth.net/subscribers.htmElecraft web page:
http://www.elecraft.com