[AMPS] Amp using 833A

[William Fuqua]

At 04:09 PM 9/25/00 +0100, you wrote:

>No, it's application of tube technology. A tube that will do push-pull AB2 
>audio
>will do parallel or push pull AB2 RF. There's nothing magic in parallel v.
>push-pull when tuned tank circuits are used.

  I'll have to disagree here. A single tube neat cut off. This is still the 
case when
they are in parallel. However, in push-pull class AB this non-linearity can 
be reduced at
crossover (near zero-crossing). As one tube is turning off the other is 
beginning to
conduct.  There are lots of examples in articles about Push-Pull amplifiers 
in the
older books and in hi-fi books.
    I will agree that there would be no difference if operation is class B 
or C. And distortion
far from zero-crossing would  not be affected either.

73
Bill wa4lav


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