[Amps] Multi-Amp w/ Power Combiners

[Larry Benko]

Generally yes if the combined port is at the correct impedance.  The 
term you asking about is called isolation and it is specified port to 
port and is a function of terminating impedances.  If you care to know 
more about combiners and splitters work there is a wealth of good info 
on the web.

http://www.microwaves101.com/encyclopedia/power%20combining.cfm
http://en.wikipedia.org/wiki/Power_combiner  etc.

Larry, W0QE



On 8/24/2012 12:47 PM, Jerry Kaidor wrote:
>> I believe coax cable type combiners cut to length are for a fixed
>> frequency.  However, there are commercial combiners that work for the
>> entire HF spectrum.  Solid state amplifiers that use more than one
>> transistor are typical examples.
> *** The original question was about multiple *tube* amps.  I've seen the
> solid state amps using combiners - I remember a QST article back in the
> 80's, when high power solid state was pretty exotic.
>
>     Do these broadband combiners work as hybrids, and prevent power from
> being fed from amp to amp?
>
>                       - Jerry Kaidor, KF6VB
>
>
>
>
>
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