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The power output drops a bit, but the AM QRM is dramatically reduced!
I will try some extra gain tomorrow!

Only changing C72 and no other mods.

C72=0.1 4th harmonic -22dbm not relative to VFO.


C72 = 10pf 4th harmonic = -39dbm



C72=5.6pf 4th Harmonic -45dbm



The original



With 5.6pf

--
Raj, vu2zap
Bengaluru, South India.