Ok, I am planing a build for a 1kw mobile amplifier. I have looked at the Ameritron amp and SGC schematics. From what I can tell, they both have tuned inputs which are nothing more than Band pass filters for each band which in turn goes through a combiner network and to the PA's Then there seems to be nothing more than a Low pass filter on the output. ....I was under the impresion there were tuned outputs for each band...But it looks to me like a standard low pass filter......What do you guys say?????