Sorry to jump backwards:
Mike, G0MJW asked if UHF ceramic tubes are more prone to parasitic
oscillation problems than glass types - I don't know, but the grid
inductance you can't get at in the glass tubes might cause bother.
Several people have told me that 3CX800 goes well in MLA2500 - might be
an easier fix than a tetrode transplant.
Steve
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