[AMPS] K2RIW Amps

[Ian White, G3SEK]

measures wrote:
>
>>
>>
>>The practical limit for good linearity is about 500W in strict class AB1
>>(ie zero g1 current).
>>
>>The Eimac data sheet for 4CX250Rs suggests more power is available...
>>but look how the linearity suffers!
>>
>I ran a pair of paralled 4cx250Rs on 2m SSB.  The tank was 1/4 wave.  
>With a screen current of c. 5mA (@400screen-v), the linearity was good. 
>Output was c.900w PEP on SSB.

"The linearity was good"... for California. Here in Europe you'd find
your coax cut.

73 from Ian G3SEK          Editor, 'The VHF/UHF DX Book'
                          'In Practice' columnist for RadCom (RSGB)
                           http://www.ifwtech.com/g3sek

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