Greetings Amps gurus,
Happy Holidays and special thanks to all who've been so helpful to me over the
past year! It means a great deal to me.
I'm wondering if someone can explain why AB2 GG service is more linear than AB2
grid-driven service? I've been working with my latest project ( still on paper
) which is a pair of 4-400As and it appears that all other things being equal,
about 200-250 watts more is available in AB2 operation than is available in
AB1. I guess I understand why this is but don't quite understand why AB2
grid-driven service gives poor linearity yet AB2 cathode-driven service is
acceptable.
I decided to try grid driven service because it simplifies bandswitching (
given the parts in my junkbox ) and in passive configuration, makes for
construction simplicity ( no tuned input needed ).
Again.... many thanks to all and Happy Holidays
RD
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