On Fri, 24 Apr 1998 08:42:35 +0100 Steve Thompson <amps@txrx.demon.co.uk>
writes:
>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.
Have you considered a pair of 8874's? As pulls they seem to show up at
decent prices. A "little bit of sheet metal work" for a below deck air
plenum and it might be easier than the 3CX800.
GL Carl KM1H
>
>Steve
>
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