[AMRadio] Source Broadcast Xmtrs

[W2XJ]

The first problem is the low efficiency of a linear in the AM mode. 
Plate mod in the day was much more efficient. A modern solid state TX is 
the equivalent of a plate mod arrangement and can be made to perform in 
a more linear fashion than a typical linear amplifier.

On 6/13/11 10:02 AM, Brian Harris wrote:
> One would think that, if an exciter with AM modulation driving a tube or array
> of tubes operating in a linear mode was such a perfect solution, then
> manufacturers would have created such beasts to meet the demands of the many
> radio stations that wanting them.  Since plate modulated transmitters were in
> fact 'the' preferred broadcast solution prior to the introduction of
> semiconductors seems to validate precisely why they are still liked today.
>
> Brian Harris, WA5UEK, proud owner of a Collins KW-1 and RCA BTA1R1
> phone 214-763-5977
> email cosmophone at yahoo.com
> website www.myhamshack.com/wa5uek
> http://groups.yahoo.com/group/nationalradio/
>
>
> It is far better to grasp the universe as it really is than to persist in
> delusion, however satisfying and reassuring.  -Carl Sagan
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