> Some friend told me that runing tube on pushpull will be give bigger power
> than parallel (for two tube). I don't really understand, could anybody
> here give some explanation.
>
> de Firson - YD1BIH
For RF amplifiers, if you are operating the tube close to the upper
frequency limit, push pull can help stabilize the PA. It also reduces
even harmonics.
For power output, as a general rule, there is no difference at all.
Your friend was not correct in the typical case in RF PA's.
73, Tom W8JI
w8ji@contesting.com
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