Hi all, I am new to this list and need some help.
In various ( linear SSB ) 4CX 1500B PA designs I have seen various Vg2
voltages from + 225 V until +300V.
As far as I could recall, the lower the Vg2 the lower the IMD3 (?)
What could be the reason for designing a ( SSB linear ) 4CX1500B circuit
with Vg2 at 300 V ?
End of all, one of the reasons to choose for a 4CX1500B is the relative low
IMD3.
What are pro's and con's of such relatively high Vg2 ?
EIMAC's " Care and feeding.. " does not resolve this question for me .
Who could ?
Thanks for any explanation.
Peter, PE1E
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