[Amps] SB220 vote

[R.Measures]

>Steven Grant W4IIV wrote:
>> does it matter Rich?   to me the single 3-500Z amps today are junk.
>> (junque for the higher classes)  my data tells me that at 3,000
>> volts, the max plate current should be 370-400 ma and get 750 watts
>> out of it....how can these amps be linear?????
>
>Unfortunately, the ARRL lab doesn't seem to have tested the Ameritron 
>AL80B (or any of the AL80 series), but the specs call for -35 db or 
>better 3rd order IMD.  This is the same spec as the Alpha 87.  -35 db is 
>better than most transceivers:  

** Amen, Vic.

>the ARRL lab measured -31 db from the 
>Yaesu FT1000-MP Mark V Field in its normal mode, and -40 db in its 
>special class-A low distortion mode.
>
>I think the AL80 series is as clean as most modern amplifiers.

**  Agreed, provided that the plate/anode current is pretty much within 
the mfg's ratings.  .

-  R.L. Measures/Rich..., AG6K, 805.386.3734, www.somis.org